Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
510
FNUS56 KSTO 202104
FWFSTO
Fire Weather Planning Forecast for Interior Northern California
National Weather Service Sacramento CA
203 PM PDT Mon Jul 20 2026
...Showers and isolated thunderstorms possible Today through
Wednesday, with highest potential in the Sierra south of I-80...
.DISCUSSION...
Seasonable high temperatures through the middle of this week.
Monsoonal and remnant tropical moisture continues to push into the
region today bringing chances for showers and mountain
thunderstorms through mid week. Highest thunderstorms chances are
along the Sierra crest, around 10 to 25%, especially south of
I-80 on Tuesday and Wednesday.
CAZ121-212300-
W. Shasta County Above 3000 ft-
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
partly cloudy.
* Min Temperature........60-68.
* 24 HR Trend..........Little change.
* Max Humidity...........37-52 percent.
* 24 HR Trend..........4 percent down.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Variable winds up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY...
* Sky/Weather............Partly cloudy in the morning then
clearing.
* Max Temperature........80-89.
* 24 HR Trend..........Little change.
* Min Humidity...........28-35 percent.
* 24 HR Trend..........5 percent up.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming south up
to 7 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........6100 ft AGL.
* Chance of thunder......3 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........63-69.
* Max Humidity...........54-69 percent.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Variable winds up to 5 mph.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......3 percent.
.WEDNESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........80-88.
* Min Humidity...........28-43 percent.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming south 5
to 11 mph in the afternoon.
* Mixing Height..........7300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
$$
CAZ122-212300-
W. Shasta County 1000-3000 ft-
Including the city of Whiskeytown
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........66-73 lower elevations...except 61-68
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........37-52 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Drainage winds up to 5 mph.
* Ridges/Upr Slopes....Variable winds up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........96-101 lower elevations...except 88-93
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........24-29 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming southeast
up to 7 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
southeast up to 7 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........6500 ft AGL.
* Chance of thunder......2 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........69-75 lower elevations...except 63-71
higher elevations.
* Max Humidity...........47-62 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Drainage winds up to 5 mph.
* Ridges/Upr Slopes....Variable winds up to 5 mph.
* Mixing Height..........600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......2 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........96-101 lower elevations...except 89-94
higher elevations.
* Min Humidity...........25-38 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming southeast
4 to 9 mph with local gusts up to 20 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
southeast 5 to 10 mph with local gusts up to 20 mph in the
afternoon.
* Mixing Height..........6600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
$$
CAZ123-212300-
Shasta Lake Area & 1-5 1000-3000 ft-
Including the city of Shasta Lake, Sims
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........63-69.
* 24 HR Trend..........Little change.
* Max Humidity...........43-56 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........South winds up to 7 mph shifting to the
north up to 6 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........93-98 lower elevations...except 88-94
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........25-30 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northeast winds up to 6 mph shifting to
the south up to 7 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........6000 ft AGL.
* Chance of thunder......4 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........65-71.
* Max Humidity...........55-70 percent.
* 20-Foot Winds..........Southwest winds up to 7 mph shifting to
the north after midnight.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......4 percent.
.WEDNESDAY...
* Sky/Weather............Partly cloudy early in the morning then
clearing.
* Max Temperature........94-99 lower elevations...except 88-94
higher elevations.
* Min Humidity...........24-38 percent.
* 20-Foot Winds..........Northeast winds up to 7 mph shifting to
the south up to 8 mph in the afternoon.
* Mixing Height..........6500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ124-212300-
Shasta Metro-
Including the city of Redding, Anderson
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........69-74.
* 24 HR Trend..........Little change.
* Max Humidity...........43-48 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........South winds up to 5 mph in the evening
becoming variable less than 5 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........98-103.
* 24 HR Trend..........Little change.
* Min Humidity...........18-23 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Variable winds less than 5 mph becoming
south up to 6 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........7000 ft AGL.
* Chance of thunder......2 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........70-75.
* Max Humidity...........45-60 percent.
* 20-Foot Winds..........South winds up to 5 mph in the evening
becoming variable less than 5 mph.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......2 percent.
.WEDNESDAY...
* Sky/Weather............Partly cloudy early in the morning then
clearing.
* Max Temperature........100-105.
* Min Humidity...........23-28 percent.
* 20-Foot Winds..........Variable winds less than 5 mph becoming
south 4 to 9 mph in the afternoon.
* Mixing Height..........6800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ125-212300-
Shasta County Foothills 1000-3000 ft-
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........67-72.
* 24 HR Trend..........Little change.
* Max Humidity...........43-48 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Drainage winds up to 5 mph.
* Ridges/Upr Slopes....Variable winds up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........92-97.
* 24 HR Trend..........Little change.
* Min Humidity...........23-28 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
southwest up to 7 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........6400 ft AGL.
* Chance of thunder......3 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........67-72.
* Max Humidity...........47-62 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Drainage winds up to 5 mph.
* Ridges/Upr Slopes....Variable winds up to 5 mph.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......3 percent.
.WEDNESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........94-99.
* Min Humidity...........24-36 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming southwest
up to 8 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
southwest up to 8 mph in the afternoon.
* Mixing Height..........6300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ126-212300-
E. Shasta /S. Cascades Above 3000 ft-
Including the city of Shingletown
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........54-64.
* 24 HR Trend..........Little change.
* Max Humidity...........46-61 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds up to 7 mph in the evening
becoming drainage up to 5 mph.
* Ridges/Upr Slopes....Southwest winds up to 7 mph in the evening
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........80-89.
* 24 HR Trend..........Little change.
* Min Humidity...........29-37 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming southwest
4 to 9 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
southwest 4 to 9 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........5500 ft AGL.
* Chance of thunder......4 percent.
.TUESDAY NIGHT...
* Sky/Weather............Partly cloudy until early morning then
becoming mostly cloudy.
* Min Temperature........56-66.
* Max Humidity...........56-71 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds up to 7 mph in the evening
becoming drainage up to 5 mph.
* Ridges/Upr Slopes....Southwest winds up to 8 mph in the evening
becoming variable up to 5 mph.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......4 percent.
.WEDNESDAY...
* Sky/Weather............Partly cloudy early in the morning then
clearing.
* Max Temperature........79-89.
* Min Humidity...........30-45 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west 4 to
10 mph with local gusts up to 20 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
southwest 5 to 11 mph in the afternoon.
* Mixing Height..........6800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ127-212300-
Burney Basin-
Including the city of Burney
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........55-61.
* 24 HR Trend..........Little change.
* Max Humidity...........52-63 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds up to 7 mph in the evening
becoming drainage up to 5 mph.
* Ridges/Upr Slopes....West winds up to 8 mph in the evening
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......2 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........84-91 lower elevations...except 78-87
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........29-36 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west 4 to
9 mph with local gusts up to 20 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming west up
to 8 mph with local gusts up to 20 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........7200 ft AGL.
* Chance of thunder......4 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear then becoming mostly cloudy
after midnight then becoming partly cloudy.
* Min Temperature........57-63.
* Max Humidity...........58-73 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds up to 7 mph with local gusts
up to 20 mph in the evening becoming drainage up to 5 mph.
* Ridges/Upr Slopes....Southwest winds up to 7 mph with local gusts
up to 20 mph in the evening becoming variable up to 5 mph.
* Mixing Height..........600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......5 percent.
.WEDNESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........86-92 lower elevations...except 78-88
higher elevations.
* Min Humidity...........33-48 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west 4 to
9 mph with local gusts up to 20 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming west up
to 8 mph with local gusts up to 20 mph in the afternoon.
* Mixing Height..........8600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......2 percent.
$$
CAZ128-212300-
Lassen Volcanic NP-
Including the city of Lassen National Park
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........52-57.
* 24 HR Trend..........Little change.
* Max Humidity...........50-60 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........South winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........800 ft AGL.
* Chance of thunder......3 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........71-78.
* 24 HR Trend..........Little change.
* Min Humidity...........35-46 percent.
* 24 HR Trend..........6 percent up.
* 20-Foot Winds..........Southwest winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........6900 ft AGL.
* Chance of thunder......6 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear then becoming mostly cloudy
after midnight then becoming mostly clear.
* Min Temperature........54-59.
* Max Humidity...........59-74 percent.
* 20-Foot Winds..........West winds up to 7 mph shifting to the
northeast up to 6 mph after midnight.
* Mixing Height..........600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......5 percent.
.WEDNESDAY...
* Sky/Weather............Partly cloudy early in the morning then
clearing.
* Max Temperature........71-79.
* Min Humidity...........35-50 percent.
* 20-Foot Winds..........West winds up to 8 mph. Local gusts up to
20 mph in the afternoon.
* Mixing Height..........8900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......4 percent.
$$
CAZ129-212300-
Sierra (Tehama-Plumas) 1000-3000 ft-
Including the city of Paradise
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........68-74.
* 24 HR Trend..........Little change.
* Max Humidity...........36-47 percent.
* 24 HR Trend..........4 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southeast winds up to 7 mph in the evening
becoming drainage up to 5 mph.
* Ridges/Upr Slopes....Variable winds up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........89-95.
* 24 HR Trend..........Little change.
* Min Humidity...........26-33 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming southwest
up to 7 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
southwest up to 7 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........4900 ft AGL.
* Chance of thunder......2 percent.
.TUESDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........70-76.
* Max Humidity...........50-65 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southeast winds up to 7 mph.
* Ridges/Upr Slopes....East winds up to 7 mph.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
.WEDNESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........93-98 lower elevations...except 88-93
higher elevations.
* Min Humidity...........30-45 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...South winds up to 8 mph.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
southwest up to 8 mph in the afternoon.
* Mixing Height..........5800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ130-212300-
Sierra (Tehama-Plumas) Above 3000 ft-
Including the city of Mineral, Quincy
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........56-66.
* 24 HR Trend..........Little change.
* Max Humidity...........46-61 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds 4 to 9 mph in the evening
becoming drainage up to 5 mph.
* Ridges/Upr Slopes....Southwest winds 4 to 9 mph in the evening
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......2 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........81-89 lower elevations...except 75-84
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........29-40 percent.
* 24 HR Trend..........5 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds up to 8 mph.
* Ridges/Upr Slopes....Southwest winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........5800 ft AGL.
* Chance of thunder......3 percent.
.TUESDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........58-68.
* Max Humidity...........57-72 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds up to 8 mph in the evening
becoming drainage up to 5 mph.
* Ridges/Upr Slopes....Southwest winds up to 8 mph in the evening
becoming variable up to 5 mph.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......3 percent.
.WEDNESDAY...
* Sky/Weather............Partly cloudy early in the morning then
clearing.
* Max Temperature........81-89 lower elevations...except 76-84
higher elevations.
* Min Humidity...........31-46 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming southwest
4 to 9 mph with local gusts up to 20 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
southwest 5 to 11 mph in the afternoon.
* Mixing Height..........7300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ131-212300-
N. Motherlode 1000-3000 ft-
Including the city of Auburn, Grass Valley, Colfax, Nevada City
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........66-71.
* 24 HR Trend..........Little change.
* Max Humidity...........48-56 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........South winds up to 6 mph in the evening
becoming variable less than 5 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........90-95.
* 24 HR Trend..........Little change.
* Min Humidity...........26-33 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........Southwest winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........5200 ft AGL.
* Chance of thunder......2 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........67-72.
* Max Humidity...........55-70 percent.
* 20-Foot Winds..........Southeast winds up to 6 mph.
* Mixing Height..........400 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........91-96.
* Min Humidity...........30-45 percent.
* 20-Foot Winds..........Southeast winds up to 6 mph shifting to
the southwest up to 8 mph in the afternoon.
* Mixing Height..........5400 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ132-212300-
Sierra (Yuba-Placer) 3000-5000 ft-
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........61-71.
* 24 HR Trend..........Little change.
* Max Humidity...........46-61 percent.
* 24 HR Trend..........5 percent up.
* 20-Foot Winds..........Southwest winds up to 7 mph shifting to
the east up to 5 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........82-90.
* 24 HR Trend..........Little change.
* Min Humidity...........33-40 percent.
* 24 HR Trend..........5 percent up.
* 20-Foot Winds..........Southwest winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........5500 ft AGL.
* Chance of thunder......4 percent.
.TUESDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........63-71.
* Max Humidity...........62-77 percent lower elevations...except
49-64 percent high elevations.
* 20-Foot Winds..........Southwest winds up to 6 mph shifting to
the east after midnight.
* Mixing Height..........400 ft AGL.
* CWR....................0 percent.
* Chance of thunder......4 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........82-90.
* Min Humidity...........35-50 percent.
* 20-Foot Winds..........East winds up to 6 mph shifting to the
southwest 4 to 9 mph in the afternoon.
* Mixing Height..........5700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ133-212300-
Sierra (Sierra-Placer) Above 5000 ft-
Including the city of Blue Canyon, Kingvale, Donner Peak
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy in the evening then becoming
mostly cloudy.
* Min Temperature........55-65.
* 24 HR Trend..........Little change.
* Max Humidity...........52-67 percent.
* 24 HR Trend..........9 percent up.
* 20-Foot Winds..........Southwest winds 4 to 9 mph with local
gusts up to 20 mph shifting to the east up to 6 mph after
midnight.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......2 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........74-82.
* 24 HR Trend..........Little change.
* Min Humidity...........38-49 percent.
* 24 HR Trend..........8 percent up.
* 20-Foot Winds..........Southwest winds up to 8 mph. Local gusts
up to 20 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........5700 ft AGL.
* Chance of thunder......8 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear then becoming mostly cloudy
after midnight then becoming mostly clear.
* Min Temperature........55-65.
* Max Humidity...........62-77 percent.
* 20-Foot Winds..........West winds up to 8 mph shifting to the
east up to 6 mph after midnight.
* Mixing Height..........600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......6 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........74-82.
* Min Humidity...........42-57 percent.
* 20-Foot Winds..........East winds up to 6 mph shifting to the
southwest 5 to 11 mph with local gusts up to 20 mph in the
afternoon.
* Mixing Height..........7000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......2 percent.
$$
CAZ134-212300-
Central Motherlode 1000-3000 ft-
Including the city of Cameron Park, Shingle Springs, Placerville,
Cool, Jackson
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........66-71.
* 24 HR Trend..........Little change.
* Max Humidity...........47-52 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds up to 7 mph in the evening
becoming drainage up to 5 mph.
* Ridges/Upr Slopes....Variable winds up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........90-95.
* 24 HR Trend..........Little change.
* Min Humidity...........24-30 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west up
to 7 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........4800 ft AGL.
* Chance of thunder......2 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........68-73.
* Max Humidity...........47-62 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Drainage winds up to 5 mph.
* Ridges/Upr Slopes....Variable winds up to 5 mph.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........93-98 lower elevations...except 88-93
higher elevations.
* Min Humidity...........30-43 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming southwest
up to 8 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph.
* Mixing Height..........4800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ135-212300-
Sierra 3000-5000 ft-
Including the city of Pollock Pines
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........64-71 lower elevations...except 69-74
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........48-63 percent lower elevations...except
43-50 percent high elevations.
* 24 HR Trend..........7 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Drainage winds up to 5 mph.
* Ridges/Upr Slopes....Variable winds up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........84-89.
* 24 HR Trend..........Little change.
* Min Humidity...........32-38 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west up
to 8 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming west up
to 7 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........5000 ft AGL.
* Chance of thunder......4 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........63-71.
* Max Humidity...........58-73 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Drainage winds up to 5 mph.
* Ridges/Upr Slopes....Variable winds up to 5 mph.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......3 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........83-89.
* Min Humidity...........37-52 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west up
to 8 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming west up
to 7 mph in the afternoon.
* Mixing Height..........5300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ136-212300-
Sierra (El Dorado-Amador) Above 5000 ft-
Including the city of Carson Pass
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
partly cloudy.
* Min Temperature........55-63.
* 24 HR Trend..........Little change.
* Max Humidity...........55-70 percent.
* 24 HR Trend..........12 percent up.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Southwest winds 4 to 9 mph with local gusts
up to 20 mph in the evening becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......3 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny in the morning then becoming
partly cloudy. At higher elevations, a slight chance of showers
and thunderstorms in the afternoon.
* Max Temperature........72-82.
* 24 HR Trend..........Little change.
* Min Humidity...........39-52 percent.
* 24 HR Trend..........8 percent up.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Southwest winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........5500 ft AGL.
* Chance of thunder......15 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........54-62.
* Max Humidity...........64-79 percent.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Northwest winds up to 7 mph in the evening
becoming variable up to 5 mph.
* Mixing Height..........600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......7 percent.
.WEDNESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........71-81.
* Min Humidity...........45-60 percent.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming west 5
to 11 mph in the afternoon.
* Mixing Height..........6700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......2 percent.
$$
CAZ137-212300-
Southern Motherlode 1000-3000 ft-
Including the city of Sonora, Angels Camp
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........66-72.
* 24 HR Trend..........Little change.
* Max Humidity...........44-59 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds up to 8 mph.
* Ridges/Upr Slopes....Northwest winds up to 8 mph in the evening
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......2 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........91-97.
* 24 HR Trend..........Little change.
* Min Humidity...........22-29 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds 4 to 9 mph.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming west 5
to 10 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........5000 ft AGL.
* Chance of thunder......2 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........68-74.
* Max Humidity...........50-65 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds up to 8 mph.
* Ridges/Upr Slopes....Northwest winds up to 8 mph in the evening
becoming variable up to 5 mph.
* Mixing Height..........600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........92-97.
* Min Humidity...........25-40 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds 4 to 9 mph.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming west 4
to 9 mph in the afternoon.
* Mixing Height..........5300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ138-212300-
Sierra (Cal-Tuo) 3000-5000 ft-
Including the city of Twain Harte, Arnold
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
partly cloudy.
* Min Temperature........64-72.
* 24 HR Trend..........Little change.
* Max Humidity...........50-64 percent.
* 24 HR Trend..........7 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds up to 7 mph in the evening
becoming drainage up to 5 mph.
* Ridges/Upr Slopes....Northwest winds up to 7 mph in the evening
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......2 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........84-90.
* 24 HR Trend..........Little change.
* Min Humidity...........30-37 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west up
to 8 mph in the afternoon.
* Ridges/Upr Slopes....Southwest winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........5300 ft AGL.
* Chance of thunder......5 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........64-72.
* Max Humidity...........63-78 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds up to 7 mph in the evening
becoming drainage up to 5 mph.
* Ridges/Upr Slopes....Northwest winds up to 7 mph in the evening
becoming variable up to 5 mph.
* Mixing Height..........600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......3 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........84-90.
* Min Humidity...........34-49 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west 4 to
9 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming west 5
to 10 mph in the afternoon.
* Mixing Height..........5900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ139-212300-
Sierra (Cal-Tuo) Above 5000 ft-
Including the city of Twain Harte, Arnold
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly cloudy. At higher elevations, a
slight chance of rain in the evening.
* Min Temperature........54-64.
* 24 HR Trend..........Little change.
* Max Humidity...........63-78 percent.
* 24 HR Trend..........12 percent up.
* 20-Foot Winds..........
* Ridges/Upr Slopes....West winds up to 8 mph in the evening
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......7 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny in the morning then becoming
partly cloudy. At higher elevations, a chance of showers and a
slight chance of thunderstorms in the afternoon.
* Max Temperature........72-82.
* 24 HR Trend..........Little change.
* Min Humidity...........37-51 percent.
* 24 HR Trend..........8 percent up.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming west up
to 8 mph in the afternoon.
* CWR....................10 percent.
* Mixing Height..........5400 ft AGL.
* Chance of thunder......22 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........53-63.
* Max Humidity...........68-83 percent.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Northwest winds up to 8 mph in the evening
becoming variable up to 5 mph.
* Mixing Height..........600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......11 percent.
.WEDNESDAY...
* Sky/Weather............Sunny. At higher elevations, a slight
chance of showers and thunderstorms in the afternoon.
* Max Temperature........72-82.
* Min Humidity...........42-57 percent.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
southwest 5 to 11 mph in the afternoon.
* Mixing Height..........6800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......4 percent.
$$
CAZ140-212300-
Tehama Co Coast Range Above 3000 ft-
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
partly cloudy.
* Min Temperature........63-68.
* 24 HR Trend..........Little change.
* Max Humidity...........36-41 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........West winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........76-85.
* 24 HR Trend..........Little change.
* Min Humidity...........32-38 percent.
* 24 HR Trend..........7 percent up.
* 20-Foot Winds..........Southeast winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........6200 ft AGL.
* Chance of thunder......3 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........64-70.
* Max Humidity...........43-58 percent.
* 20-Foot Winds..........West winds up to 8 mph.
* Mixing Height..........600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......2 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........75-85.
* Min Humidity...........32-47 percent.
* 20-Foot Winds..........North winds up to 6 mph shifting to the
southeast 8 to 14 mph with local gusts up to 25 mph in the
afternoon.
* Mixing Height..........7900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......3 percent.
$$
CAZ141-212300-
W Tehama Co Foothills 1000-3000 ft-
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........72-77 lower elevations...except 66-73
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........33-38 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........South winds up to 7 mph shifting to the
northwest up to 5 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........94-99 lower elevations...except 84-89
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........23-28 percent.
* 24 HR Trend..........5 percent up.
* 20-Foot Winds..........North winds up to 6 mph shifting to the
southeast up to 7 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........5800 ft AGL.
* Chance of thunder......2 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........73-78 lower elevations...except 68-74
higher elevations.
* Max Humidity...........38-52 percent.
* 20-Foot Winds..........Southwest winds up to 6 mph.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........96-101 lower elevations...except 86-91
higher elevations.
* Min Humidity...........26-40 percent.
* 20-Foot Winds..........Variable winds less than 5 mph becoming
southeast 6 to 12 mph with local gusts up to 25 mph in the
afternoon.
* Mixing Height..........6600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......3 percent.
$$
CAZ142-212300-
N. Sac Valley in Tehama County-
Including the city of Red Bluff
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........69-74.
* 24 HR Trend..........Little change.
* Max Humidity...........42-51 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Southeast winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........96-101.
* 24 HR Trend..........Little change.
* Min Humidity...........21-26 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........South winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........5600 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........71-76.
* Max Humidity...........45-60 percent.
* 20-Foot Winds..........South winds up to 7 mph.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
.WEDNESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........98-103.
* Min Humidity...........25-39 percent.
* 20-Foot Winds..........Variable winds less than 5 mph becoming
south 5 to 11 mph with local gusts up to 20 mph in the afternoon.
* Mixing Height..........6700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ143-212300-
Glenn/Colusa Coast Range Above 3000 ft-
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........64-71.
* 24 HR Trend..........Little change.
* Max Humidity...........36-44 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........West winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........76-86.
* 24 HR Trend..........Little change.
* Min Humidity...........30-37 percent.
* 24 HR Trend..........6 percent up.
* 20-Foot Winds..........Northeast winds up to 6 mph shifting to
the south 4 to 9 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........6200 ft AGL.
* Chance of thunder......2 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........66-72.
* Max Humidity...........40-55 percent.
* 20-Foot Winds..........West winds up to 8 mph.
* Mixing Height..........600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........76-86.
* Min Humidity...........34-49 percent.
* 20-Foot Winds..........North winds up to 6 mph increasing to
southeast 9 to 15 mph with local gusts up to 25 mph in the
afternoon.
* Mixing Height..........7700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
$$
CAZ144-212300-
Central Glenn Co & Interstate 5-
Including the city of Willows, Orland
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........67-72.
* 24 HR Trend..........Little change.
* Max Humidity...........50-62 percent.
* 24 HR Trend..........4 percent down.
* 20-Foot Winds..........South winds up to 7 mph in the evening
becoming variable less than 5 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........95-100.
* 24 HR Trend..........Little change.
* Min Humidity...........26-33 percent.
* 24 HR Trend..........5 percent up.
* 20-Foot Winds..........Northeast winds up to 5 mph shifting to
the southeast up to 7 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........4300 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........69-74.
* Max Humidity...........48-63 percent.
* 20-Foot Winds..........South winds up to 7 mph shifting to the
northwest up to 6 mph after midnight.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........97-102.
* Min Humidity...........29-44 percent.
* 20-Foot Winds..........East winds up to 7 mph. Local gusts up to
20 mph in the afternoon.
* Mixing Height..........7100 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ145-212300-
Eastern Glenn County-
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........66-71.
* 24 HR Trend..........Little change.
* Max Humidity...........60-65 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Southeast winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........94-99.
* 24 HR Trend..........Little change.
* Min Humidity...........32-37 percent.
* 24 HR Trend..........5 percent up.
* 20-Foot Winds..........Variable winds less than 5 mph becoming
south up to 6 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........3800 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........67-72.
* Max Humidity...........57-65 percent.
* 20-Foot Winds..........Southeast winds up to 6 mph.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........96-101.
* Min Humidity...........34-43 percent.
* 20-Foot Winds..........Southeast winds up to 8 mph.
* Mixing Height..........6800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ146-212300-
Butte County Below 1000 ft-
Including the city of Chico, Oroville, Gridley
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........66-72.
* 24 HR Trend..........Little change.
* Max Humidity...........48-63 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Southeast winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........95-100.
* 24 HR Trend..........Little change.
* Min Humidity...........25-33 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........South winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........4100 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly cloudy early in the evening then
clearing.
* Min Temperature........69-74.
* Max Humidity...........46-61 percent.
* 20-Foot Winds..........Southeast winds up to 7 mph.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
.WEDNESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........97-102.
* Min Humidity...........26-40 percent.
* 20-Foot Winds..........South winds up to 8 mph.
* Mixing Height..........5500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ147-212300-
W. Glenn/Colusa Foothills 1000-3000 ft-
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........67-73.
* 24 HR Trend..........Little change.
* Max Humidity...........36-50 percent.
* 24 HR Trend..........4 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Drainage winds up to 5 mph.
* Ridges/Upr Slopes....Southwest winds up to 7 mph in the evening
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........93-98 lower elevations...except 85-90
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........24-29 percent.
* 24 HR Trend..........5 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming southeast
5 to 8 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
southeast 5 to 8 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........5600 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........69-75.
* Max Humidity...........39-54 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds up to 8 mph in the evening
becoming drainage up to 5 mph.
* Ridges/Upr Slopes....West winds up to 8 mph.
* Mixing Height..........600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........94-99 lower elevations...except 86-91
higher elevations.
* Min Humidity...........26-40 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming southeast
6 to 12 mph in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
southeast 7 to 13 mph in the afternoon.
* Mixing Height..........7400 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ148-212300-
Central Colusa County Incl. I-5-
Including the city of Williams
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........66-71.
* 24 HR Trend..........Little change.
* Max Humidity...........51-65 percent.
* 24 HR Trend..........6 percent down.
* 20-Foot Winds..........South winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........94-99.
* 24 HR Trend..........Little change.
* Min Humidity...........28-37 percent.
* 24 HR Trend..........6 percent up.
* 20-Foot Winds..........North winds up to 6 mph shifting to the
southeast up to 7 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........4200 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........68-73.
* Max Humidity...........46-61 percent.
* 20-Foot Winds..........Southwest winds 4 to 9 mph.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........95-100.
* Min Humidity...........33-46 percent.
* 20-Foot Winds..........Southeast winds 4 to 9 mph. Local gusts up
to 20 mph in the afternoon.
* Mixing Height..........7600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ149-212300-
Eastern Colusa County-
Including the city of Colusa
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........64-69.
* 24 HR Trend..........Little change.
* Max Humidity...........63-68 percent.
* 24 HR Trend..........5 percent down.
* 20-Foot Winds..........Southeast winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........95-100.
* 24 HR Trend..........Little change.
* Min Humidity...........31-37 percent.
* 24 HR Trend..........6 percent up.
* 20-Foot Winds..........Variable winds less than 5 mph becoming
south up to 5 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........3800 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........67-72.
* Max Humidity...........56-64 percent.
* 20-Foot Winds..........South winds up to 5 mph.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........95-100.
* Min Humidity...........33-46 percent.
* 20-Foot Winds..........Southeast winds up to 7 mph.
* Mixing Height..........7200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ150-212300-
Sutter/Yuba counties below 1000 ft-
Including the city of Yuba City, Beale AFB
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........63-68.
* 24 HR Trend..........Little change.
* Max Humidity...........52-67 percent.
* 24 HR Trend..........5 percent down.
* 20-Foot Winds..........South winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........96-101.
* 24 HR Trend..........Little change.
* Min Humidity...........24-29 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........South winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........3800 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY NIGHT...
* Sky/Weather............Partly cloudy in the evening then
clearing.
* Min Temperature........67-72.
* Max Humidity...........41-56 percent.
* 20-Foot Winds..........South winds up to 7 mph.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........97-102.
* Min Humidity...........26-39 percent.
* 20-Foot Winds..........South winds 4 to 9 mph.
* Mixing Height..........5300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ151-212300-
Yolo / Solano County Hills-
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy with a slight chance of
rain.
* Min Temperature........61-71.
* 24 HR Trend..........Little change.
* Max Humidity...........50-65 percent.
* 24 HR Trend..........10 percent down.
* 20-Foot Winds..........
* Ridges/Upr Slopes....West winds 5 to 8 mph in the evening
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........88-96.
* 24 HR Trend..........6 degrees warmer.
* Min Humidity...........23-30 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming south 4
to 7 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........5000 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature........67-77.
* Max Humidity...........48-63 percent.
* 20-Foot Winds..........
* Ridges/Upr Slopes....West winds 7 to 13 mph.
* Mixing Height..........600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........83-93.
* Min Humidity...........37-52 percent.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming south 6
to 11 mph in the afternoon.
* Mixing Height..........4400 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ152-212300-
W. Yolo County including Capay/I-505-
Including the city of Esparto, Winters
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........65-70.
* 24 HR Trend..........Little change.
* Max Humidity...........50-65 percent.
* 24 HR Trend..........5 percent down.
* 20-Foot Winds..........Southwest winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........96-101.
* 24 HR Trend..........5 degrees warmer.
* Min Humidity...........22-27 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northeast winds up to 6 mph shifting to
the south up to 7 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........5500 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature........68-73.
* Max Humidity...........43-58 percent.
* 20-Foot Winds..........Southwest winds 4 to 9 mph. Local gusts up
to 20 mph in the evening.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........94-99.
* Min Humidity...........30-39 percent.
* 20-Foot Winds..........Southwest winds 4 to 9 mph. Local gusts up
to 20 mph in the afternoon.
* Mixing Height..........5500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ153-212300-
C. Yolo/NE Solano including Woodland-
Including the city of Woodland, Dixon
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........61-66.
* 24 HR Trend..........Little change.
* Max Humidity...........66-71 percent.
* 24 HR Trend..........7 percent down.
* 20-Foot Winds..........South winds 4 to 9 mph. Local gusts up to
20 mph in the evening.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........95-100.
* 24 HR Trend..........5 degrees warmer.
* Min Humidity...........23-28 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........South winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........4600 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature........65-70.
* Max Humidity...........55-63 percent.
* 20-Foot Winds..........Southwest winds 5 to 11 mph with local
gusts up to 20 mph.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........93-98.
* Min Humidity...........30-45 percent.
* 20-Foot Winds..........South winds 5 to 11 mph with local gusts
up to 25 mph.
* Mixing Height..........5600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ154-212300-
Sac Metro/W. El Dorado/Amador County-
Including the city of Lincoln, Roseville, Sacramento, Elk Grove,
Folsom
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........61-66.
* 24 HR Trend..........Little change.
* Max Humidity...........56-71 percent.
* 24 HR Trend..........9 percent down.
* 20-Foot Winds..........South winds 4 to 9 mph. Local gusts up to
20 mph in the evening.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........96-101.
* 24 HR Trend..........5 degrees warmer.
* Min Humidity...........21-26 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Southwest winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........4300 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........66-71.
* Max Humidity...........48-63 percent.
* 20-Foot Winds..........South winds 4 to 9 mph with local gusts up
to 20 mph.
* Mixing Height..........600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........94-99.
* Min Humidity...........26-41 percent.
* 20-Foot Winds..........South winds 5 to 11 mph. Local gusts up to
20 mph in the afternoon.
* Mixing Height..........4300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ155-212300-
C. Solano County including Fairfield-
Including the city of Fairfield, Vacaville
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........62-67.
* 24 HR Trend..........Little change.
* Max Humidity...........65-71 percent.
* 24 HR Trend..........11 percent down.
* 20-Foot Winds..........Southwest winds 7 to 13 mph with local
gusts up to 25 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........93-98.
* 24 HR Trend..........8 degrees warmer.
* Min Humidity...........23-28 percent.
* 24 HR Trend..........10 percent down.
* 20-Foot Winds..........Southwest winds 6 to 12 mph with local
gusts up to 25 mph.
* CWR....................0 percent.
* Mixing Height..........2600 ft AGL.
* Chance of thunder......2 percent.
.TUESDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature........66-71.
* Max Humidity...........48-63 percent.
* 20-Foot Winds..........Southwest winds 9 to 15 mph with local
gusts up to 30 mph.
* Mixing Height..........800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........87-92.
* Min Humidity...........37-52 percent.
* 20-Foot Winds..........Southwest winds 11 to 17 mph with local
gusts up to 30 mph.
* Mixing Height..........3000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ156-212300-
SW Solano County including Vallejo-
Including the city of Vallejo, Benicia
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy with a slight chance of
rain.
* Min Temperature........58-63.
* 24 HR Trend..........Little change.
* Max Humidity...........72-84 percent.
* 24 HR Trend..........8 percent down.
* 20-Foot Winds..........Southwest winds 9 to 15 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY...
* Sky/Weather............Partly cloudy in the morning then
clearing.
* Max Temperature........86-94.
* 24 HR Trend..........10 degrees warmer.
* Min Humidity...........26-34 percent.
* 24 HR Trend..........17 percent down.
* 20-Foot Winds..........Southwest winds 7 to 13 mph.
* CWR....................0 percent.
* Mixing Height..........1700 ft AGL.
* Chance of thunder......2 percent.
.TUESDAY NIGHT...
* Sky/Weather............Clear.
* Min Temperature........62-67.
* Max Humidity...........65-80 percent.
* 20-Foot Winds..........Southwest winds 10 to 16 mph with local
gusts up to 25 mph.
* Mixing Height..........800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........81-89.
* Min Humidity...........53-68 percent.
* 20-Foot Winds..........Southwest winds 11 to 17 mph with local
gusts up to 25 mph.
* Mixing Height..........2400 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ157-212300-
Sacramento County Delta-
Including the city of Walnut Grove
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........61-66.
* 24 HR Trend..........Little change.
* Max Humidity...........67-72 percent.
* 24 HR Trend..........12 percent down.
* 20-Foot Winds..........West winds 8 to 14 mph with local gusts up
to 25 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........92-97.
* 24 HR Trend..........7 degrees warmer.
* Min Humidity...........24-29 percent.
* 24 HR Trend..........8 percent down.
* 20-Foot Winds..........West winds 8 to 14 mph.
* CWR....................0 percent.
* Mixing Height..........2900 ft AGL.
* Chance of thunder......2 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........65-70.
* Max Humidity...........56-64 percent.
* 20-Foot Winds..........West winds 10 to 17 mph with local gusts
up to 25 mph.
* Mixing Height..........700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........86-92.
* Min Humidity...........42-57 percent.
* 20-Foot Winds..........West winds 11 to 17 mph.
* Mixing Height..........3200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ158-212300-
San Joaquin County Delta-
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........61-66.
* 24 HR Trend..........Little change.
* Max Humidity...........64-71 percent.
* 24 HR Trend..........11 percent down.
* 20-Foot Winds..........West winds 5 to 11 mph. Local gusts up to
20 mph in the evening.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........94-99.
* 24 HR Trend..........6 degrees warmer.
* Min Humidity...........23-28 percent.
* 24 HR Trend..........5 percent down.
* 20-Foot Winds..........West winds 5 to 11 mph. Local gusts up to
20 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........3300 ft AGL.
* Chance of thunder......2 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........66-71.
* Max Humidity...........53-62 percent.
* 20-Foot Winds..........West winds 6 to 12 mph.
* Mixing Height..........700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........89-95.
* Min Humidity...........40-55 percent.
* 20-Foot Winds..........West winds 6 to 12 mph with local gusts up
to 25 mph.
* Mixing Height..........3400 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ159-212300-
C. San Joaquin County including Stockton-
Including the city of Stockton, Lodi
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........63-68.
* 24 HR Trend..........Little change.
* Max Humidity...........60-68 percent.
* 24 HR Trend..........10 percent down.
* 20-Foot Winds..........Northwest winds 4 to 10 mph. Local gusts
up to 20 mph in the evening.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........96-101.
* 24 HR Trend..........4 degrees warmer.
* Min Humidity...........22-27 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........4100 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........67-72.
* Max Humidity...........48-61 percent.
* 20-Foot Winds..........Northwest winds 5 to 11 mph. Local gusts
up to 20 mph in the evening.
* Mixing Height..........700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........95-100.
* Min Humidity...........33-45 percent.
* 20-Foot Winds..........Northwest winds 4 to 9 mph. Local gusts up
to 20 mph in the afternoon.
* Mixing Height..........4300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ160-212300-
Tracy Triangle Below 1000 ft-
Including the city of Tracy
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........64-70.
* 24 HR Trend..........Little change.
* Max Humidity...........49-63 percent.
* 24 HR Trend..........10 percent down.
* 20-Foot Winds..........Northwest winds 4 to 9 mph. Local gusts up
to 20 mph in the evening.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........96-101.
* 24 HR Trend..........4 degrees warmer.
* Min Humidity...........20-25 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds 4 to 10 mph. Local gusts
up to 20 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........4500 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........68-73.
* Max Humidity...........41-56 percent.
* 20-Foot Winds..........West winds 8 to 14 mph with local gusts up
to 25 mph.
* Mixing Height..........600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........94-99.
* Min Humidity...........31-39 percent.
* 20-Foot Winds..........Northwest winds 4 to 10 mph. Local gusts
up to 20 mph in the afternoon.
* Mixing Height..........5100 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ161-212300-
NE San Joaquin Valley Below 1000 ft-
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........66-71.
* 24 HR Trend..........Little change.
* Max Humidity...........43-53 percent.
* 24 HR Trend..........5 percent down.
* 20-Foot Winds..........Northwest winds 5 to 11 mph. Local gusts
up to 20 mph in the evening.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........96-101.
* 24 HR Trend..........Little change.
* Min Humidity...........22-27 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds 5 to 11 mph. Local gusts
up to 20 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........4700 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........69-74.
* Max Humidity...........42-57 percent.
* 20-Foot Winds..........Northwest winds 5 to 11 mph with local
gusts up to 20 mph.
* Mixing Height..........700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........96-101.
* Min Humidity...........26-39 percent.
* 20-Foot Winds..........Northwest winds 5 to 11 mph. Local gusts
up to 20 mph in the afternoon.
* Mixing Height..........5000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ162-212300-
E. Diablo Range Above 1000 ft-
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........66-74.
* 24 HR Trend..........4 degrees warmer.
* Max Humidity...........30-44 percent.
* 24 HR Trend..........7 percent down.
* 20-Foot Winds..........
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........90-97.
* 24 HR Trend..........4 degrees warmer.
* Min Humidity...........21-26 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* CWR....................0 percent.
* Mixing Height..........6100 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........67-75.
* Max Humidity...........42-57 percent.
* 20-Foot Winds..........
* Mixing Height..........600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........89-95.
* Min Humidity...........27-41 percent.
* 20-Foot Winds..........
* Mixing Height..........6000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ163-212300-
W. Stanislaus County Above 1000 ft & I-5-
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........65-70.
* 24 HR Trend..........Little change.
* Max Humidity...........47-62 percent.
* 24 HR Trend..........9 percent down.
* 20-Foot Winds..........Northwest winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........96-101.
* 24 HR Trend..........Little change.
* Min Humidity...........22-27 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........North winds up to 8 mph. Local gusts up to
20 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........5700 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........68-73.
* Max Humidity...........42-57 percent.
* 20-Foot Winds..........West winds 4 to 10 mph.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........96-101.
* Min Humidity...........28-37 percent.
* 20-Foot Winds..........Northwest winds 4 to 9 mph. Local gusts up
to 20 mph in the afternoon.
* Mixing Height..........6500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ164-212300-
C. Stanislaus County including Modesto-
Including the city of Modesto, Turlock
203 PM PDT Mon Jul 20 2026
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........64-69.
* 24 HR Trend..........Little change.
* Max Humidity...........54-65 percent.
* 24 HR Trend..........8 percent down.
* 20-Foot Winds..........Northwest winds 6 to 12 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........95-100.
* 24 HR Trend..........Little change.
* Min Humidity...........24-29 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds 5 to 11 mph. Local gusts
up to 20 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........4700 ft AGL.
* Chance of thunder......1 percent.
.TUESDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........66-71.
* Max Humidity...........48-62 percent.
* 20-Foot Winds..........Northwest winds 6 to 12 mph.
* Mixing Height..........700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.WEDNESDAY...
* Sky/Weather............Sunny.
* Max Temperature........96-101.
* Min Humidity...........28-40 percent.
* 20-Foot Winds..........Northwest winds 4 to 10 mph.
* Mixing Height..........5200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
.Extended...
...Shasta County Mountains and Coastal Range
.WEDNESDAY NIGHT...Clear. Lows 57 to 66. Southwest winds 5 to
15 mph.
.THURSDAY...Sunny. Highs 78 to 88. South winds 5 to 15 mph.
.THURSDAY NIGHT...Clear. Lows 54 to 64. West winds 5 to 15 mph.
.FRIDAY...Sunny. Highs 80 to 90. South winds up to 10 mph.
.FRIDAY NIGHT...Clear. Lows 55 to 64. West winds up to 10 mph.
.SATURDAY...Sunny. Highs 81 to 91. Southwest winds up to 10 mph.
.SATURDAY NIGHT...Clear. Lows 55 to 64. West winds up to 10 mph.
...Northern Sierra and Lassen Park
.WEDNESDAY NIGHT...Clear. Lows 57 to 67. Southeast winds 5 to
15 mph.
.THURSDAY...Sunny. Highs 81 to 90. Southwest winds 5 to 15 mph.
.THURSDAY NIGHT...Clear. Lows 54 to 64. East winds up to 10 mph.
.FRIDAY...Sunny. Highs 83 to 92. Southwest winds up to 10 mph.
.FRIDAY NIGHT...Clear. Lows 55 to 65. Variable less than 5 mph.
.SATURDAY...Sunny. Highs 83 to 92. Southwest winds up to 10 mph.
.SATURDAY NIGHT...Clear. Lows 55 to 65. Variable less than 5 mph.
...Sierra Nevada Foothills
.WEDNESDAY NIGHT...Clear. Lows 64 to 70. South winds 5 to 15 mph.
.THURSDAY...Sunny. Highs 88 to 93. Southwest winds up to 10 mph.
.THURSDAY NIGHT...Clear. Lows 62 to 68. East winds up to 10 mph.
.FRIDAY...Sunny. Highs 90 to 95. Southwest winds up to 10 mph.
.FRIDAY NIGHT...Clear. Lows 63 to 69. Variable less than 5 mph.
.SATURDAY...Sunny. Highs 90 to 96. Southwest winds up to 10 mph.
.SATURDAY NIGHT...Clear. Lows 63 to 69. Variable less than 5 mph.
...Central Valley and Delta
.WEDNESDAY NIGHT...Clear. Lows 61 to 66. Southwest winds 5 to
15 mph.
.THURSDAY...Sunny. Highs 91 to 96. Southwest winds 5 to 15 mph.
.THURSDAY NIGHT...Clear. Lows 59 to 64. Southwest winds 5 to
15 mph.
.FRIDAY...Sunny. Highs 93 to 98. Southwest winds up to 10 mph.
.FRIDAY NIGHT...Clear. Lows 59 to 65. Southwest winds up to
10 mph.
.SATURDAY...Sunny. Highs 95 to 100. Southwest winds up to 10 mph.
.SATURDAY NIGHT...Clear. Lows 60 to 65. Southwest winds up to
10 mph.
$$