Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
877
FNUS56 KSTO 221937
FWFSTO
Fire Weather Planning Forecast for Interior Northern California
National Weather Service Sacramento CA
1237 PM PDT Fri Aug 22 2025
...Hot and Dry Conditions Bring Elevated Fire Weather Concerns
Today and Mountain Thunderstorms Expected Today and Into Next Week...
.DISCUSSION...
Hot and dry conditions continue, with daytime humidity values in
the single digits in the northern Sacramento Valley and foothills.
Upper teens and low 20s expected elsewhere in the Valley. Isolated
thunderstorm chances this afternoon mainly south of HWY-50 in the
mountains, with increasing chances this weekend and into next week
for the majority of the Sierra and Southern Cascades.
CAZ213-231945-
Eastern Portion of Shasta-Trinity NF-
1237 PM PDT Fri Aug 22 2025
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........70-75 lower elevations...except 60-70
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........25-38 percent.
* 24 HR Trend..........7 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Drainage winds up to 5 mph.
* Ridges/Upr Slopes....Southwest winds up to 7 mph shifting to the
north after midnight.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* Sky/Weather............Partly cloudy in the morning then
clearing.
* Max Temperature........100-105 lower elevations...except 89-99
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........12-17 percent.
* 24 HR Trend..........6 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming south up
to 7 mph in the afternoon.
* Ridges/Upr Slopes....Northeast winds up to 7 mph shifting to the
south 4 to 9 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........6600 ft AGL.
* Chance of thunder......1 percent.
.SATURDAY NIGHT...
* Sky/Weather............Mostly clear. Areas of smoke after
midnight.
* Min Temperature........70-75 lower elevations...except 61-71
higher elevations.
* Max Humidity...........37-52 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...South winds up to 7 mph in the evening
becoming drainage up to 5 mph.
* Ridges/Upr Slopes....South winds up to 8 mph shifting to the
north up to 7 mph after midnight.
* Mixing Height..........700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.SUNDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........99-104 lower elevations...except 87-97
higher elevations.
* Min Humidity...........14-28 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming south up
to 7 mph in the afternoon.
* Ridges/Upr Slopes....North winds up to 7 mph shifting to the
south up to 8 mph in the afternoon.
* Mixing Height..........8400 ft AGL.
* CWR....................0 percent.
* Chance of thunder......3 percent.
$$
CAZ214-231945-
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
1237 PM PDT Fri Aug 22 2025
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........57-62.
* 24 HR Trend..........5 degrees warmer.
* Max Humidity...........37-44 percent.
* 24 HR Trend..........4 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds up to 8 mph with local gusts up
to 20 mph in the evening becoming drainage up to 5 mph.
* 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......0 percent.
.SATURDAY...
* Sky/Weather............Partly cloudy in the morning then
clearing.
* Max Temperature........94-99 lower elevations...except 89-94
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........14-19 percent.
* 24 HR Trend..........5 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 4
to 9 mph with local gusts up to 20 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........8800 ft AGL.
* Chance of thunder......2 percent.
.SATURDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........58-64.
* Max Humidity...........40-55 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds 4 to 9 mph with local gusts up to
20 mph in the evening becoming drainage up to 5 mph.
* Ridges/Upr Slopes....West winds 4 to 9 mph with local gusts up to
20 mph in the evening becoming variable up to 5 mph.
* Mixing Height..........700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
.SUNDAY...
* Sky/Weather............Mostly sunny. At higher elevations, a
slight chance of showers early in the afternoon. A slight chance
of showers and thunderstorms late in the afternoon.
* Max Temperature........92-97 lower elevations...except 85-91
higher elevations.
* Min Humidity...........21-35 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 8 mph in the afternoon.
* Mixing Height..........9900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......8 percent.
$$
CAZ215-231945-
Northern Sacramento Valley to Southern Tehama County Line Below
1000 Ft-
1237 PM PDT Fri Aug 22 2025
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........70-75.
* 24 HR Trend..........Little change.
* Max Humidity...........32-42 percent.
* 24 HR Trend..........5 percent down.
* 20-Foot Winds..........South winds up to 8 mph shifting to the
north up to 6 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* Sky/Weather............Partly cloudy in the morning then
clearing. Areas of smoke in the morning.
* Max Temperature........102-107.
* 24 HR Trend..........Little change.
* Min Humidity...........12-17 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........North 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......0 percent.
.SATURDAY NIGHT...
* Sky/Weather............Mostly clear. Areas of smoke early in the
morning.
* Min Temperature........70-75.
* Max Humidity...........38-53 percent.
* 20-Foot Winds..........South winds 4 to 9 mph. Local gusts up to
20 mph in the evening.
* Mixing Height..........600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........101-106.
* Min Humidity...........15-28 percent.
* 20-Foot Winds..........North winds up to 6 mph shifting to the
south up to 8 mph in the afternoon.
* Mixing Height..........6100 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
$$
CAZ216-231945-
Central Sacramento Valley in Glenn, Colusa, Yuba, Northern
Sutter, and Butte County Below 1000 Ft-
1237 PM PDT Fri Aug 22 2025
.TONIGHT...
* Sky/Weather............Mostly clear. Areas of smoke after
midnight.
* Min Temperature........67-72.
* 24 HR Trend..........4 degrees warmer.
* Max Humidity...........43-58 percent.
* 24 HR Trend..........5 percent down.
* 20-Foot Winds..........Southeast winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* Sky/Weather............Partly cloudy in the morning then
clearing. Areas of smoke in the morning.
* Max Temperature........99-104.
* 24 HR Trend..........Little change.
* Min Humidity...........18-24 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northeast winds up to 7 mph shifting to
the south 4 to 9 mph with local gusts up to 20 mph in the
afternoon.
* CWR....................0 percent.
* Mixing Height..........4300 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY NIGHT...
* Sky/Weather............Mostly clear. Areas of smoke in the
evening.
* Min Temperature........66-71.
* Max Humidity...........45-60 percent.
* 20-Foot Winds..........South winds up to 8 mph. Local gusts up to
20 mph in the evening.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........97-102.
* Min Humidity...........18-33 percent.
* 20-Foot Winds..........Southeast winds up to 8 mph.
* Mixing Height..........4700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
$$
CAZ217-231945-
Southern Sacramento Valley in Yolo-
Sacramento Far Western Placer, southern Sutter and Solano County
Below 1000 Ft-
1237 PM PDT Fri Aug 22 2025
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........62-70.
* 24 HR Trend..........Little change.
* Max Humidity...........51-66 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........South winds 4 to 10 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........98-103.
* 24 HR Trend..........Little change.
* Min Humidity...........17-22 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Southwest winds 5 to 11 mph. Local gusts
up to 20 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........3700 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........61-67.
* Max Humidity...........52-67 percent.
* 20-Foot Winds..........South 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.
.SUNDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........95-100.
* Min Humidity...........19-34 percent.
* 20-Foot Winds..........Southwest winds 4 to 10 mph.
* Mixing Height..........3300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ218-231945-
Carquinez Strait and Delta-
1237 PM PDT Fri Aug 22 2025
.TONIGHT...
* Sky/Weather............Mostly clear in the evening then becoming
mostly cloudy.
* Min Temperature........59-65.
* 24 HR Trend..........Little change.
* Max Humidity...........67-82 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........West winds 7 to 13 mph with local gusts up
to 25 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........88-98.
* 24 HR Trend..........4 degrees cooler.
* Min Humidity...........24-36 percent.
* 24 HR Trend..........7 percent up.
* 20-Foot Winds..........West winds 8 to 14 mph with local gusts up
to 25 mph.
* CWR....................0 percent.
* Mixing Height..........1800 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........59-64.
* Max Humidity...........72-87 percent.
* 20-Foot Winds..........West winds 9 to 15 mph with local gusts up
to 25 mph.
* Mixing Height..........600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.SUNDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........84-94.
* Min Humidity...........46-61 percent.
* 20-Foot Winds..........West winds 8 to 14 mph with local gusts up
to 25 mph.
* Mixing Height..........2000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ219-231945-
Northern San Joaquin Valley in San Joaquin and Stanislaus
Counties Below 1000 ft-
1237 PM PDT Fri Aug 22 2025
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........65-72.
* 24 HR Trend..........Little change.
* Max Humidity...........43-58 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds 6 to 12 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* 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..........Northwest winds 5 to 11 mph.
* CWR....................0 percent.
* Mixing Height..........3700 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........64-70.
* Max Humidity...........46-61 percent.
* 20-Foot Winds..........Northwest winds 6 to 12 mph. Local gusts
up to 20 mph in the evening.
* Mixing Height..........600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........95-100.
* Min Humidity...........19-34 percent.
* 20-Foot Winds..........Northwest winds 5 to 11 mph.
* Mixing Height..........3700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ263-279-231945-
Southeast Edge Shasta-Trinity NF and Western Portions of Tehama-
Glenn Unit-Eastern Mendocino NF-
1237 PM PDT Fri Aug 22 2025
.TONIGHT...
* Sky/Weather............Partly cloudy. Areas of smoke after
midnight.
* Min Temperature........73-78 lower elevations...except 67-73
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........24-30 percent.
* 24 HR Trend..........6 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds up to 8 mph.
* Ridges/Upr Slopes....West winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* Sky/Weather............Partly cloudy in the morning then
clearing. Areas of smoke.
* Max Temperature........99-104 lower elevations...except 84-94
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........13-18 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds 4 to 9 mph with local gusts up to
20 mph.
* Ridges/Upr Slopes....Southeast winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........5800 ft AGL.
* Chance of thunder......1 percent.
.SATURDAY NIGHT...
* Sky/Weather............Mostly clear. Areas of smoke after
midnight.
* Min Temperature........73-78 lower elevations...except 67-73
higher elevations.
* Max Humidity...........25-40 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...South winds 4 to 9 mph with local gusts up
to 20 mph in the evening becoming drainage up to 5 mph.
* Ridges/Upr Slopes....West winds 4 to 9 mph.
* Mixing Height..........600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.SUNDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........98-103 lower elevations...except 82-92
higher elevations.
* Min Humidity...........17-30 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds up to 7 mph shifting to the
southeast 4 to 9 mph with local gusts up to 20 mph in the
afternoon.
* Ridges/Upr Slopes....Northwest winds up to 8 mph shifting to the
southeast 5 to 11 mph in the afternoon.
* Mixing Height..........6800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......2 percent.
$$
CAZ266-231945-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
1237 PM PDT Fri Aug 22 2025
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........71-77.
* 24 HR Trend..........Little change.
* Max Humidity...........26-33 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds 4 to 9 mph.
* Ridges/Upr Slopes....East winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........95-101.
* 24 HR Trend..........Little change.
* Min Humidity...........16-21 percent.
* 24 HR Trend..........5 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 4 to 10 mph shifting to the
southwest 4 to 9 mph in the afternoon.
* Ridges/Upr Slopes....Southeast winds up to 8 mph shifting to the
southwest in the afternoon.
* CWR....................0 percent.
* Mixing Height..........6300 ft AGL.
* Chance of thunder......1 percent.
.SATURDAY NIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........72-77.
* Max Humidity...........34-49 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southeast winds up to 8 mph.
* Ridges/Upr Slopes....South winds up to 8 mph shifting to the east
after midnight.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
.SUNDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........95-100 lower elevations...except 90-96
higher elevations.
* Min Humidity...........20-35 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds up to 8 mph shifting to the
southwest in the afternoon.
* Ridges/Upr Slopes....Northeast winds up to 8 mph shifting to the
southwest up to 7 mph in the afternoon.
* Mixing Height..........6200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......4 percent.
$$
CAZ220-267-231945-
Southern Motherlode From 1000 to 3000 Ft. Includes portions of
Toulumne-Calaveras Unit-
Northern Motherlode From 1000 to 3000 Ft. Includes portions of
Nevada-Yuba-Placer-Amador and Eldorado Units-
1237 PM PDT Fri Aug 22 2025
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........70-75.
* 24 HR Trend..........Little change.
* Max Humidity...........37-42 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds up to 8 mph shifting to the
northeast up to 7 mph after midnight.
* Ridges/Upr Slopes....Northwest 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.
.SATURDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........96-101.
* 24 HR Trend..........Little change.
* Min Humidity...........16-21 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds up to 8 mph.
* Ridges/Upr Slopes....Southwest winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........5200 ft AGL.
* Chance of thunder......4 percent.
.SATURDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........68-74.
* Max Humidity...........44-59 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds up to 8 mph shifting to the
northeast after midnight.
* Ridges/Upr Slopes....West winds up to 8 mph shifting to the
northeast up to 7 mph after midnight.
* Mixing Height..........500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......3 percent.
.SUNDAY...
* Sky/Weather............Mostly sunny. At higher elevations, a
slight chance of showers.
* Max Temperature........93-98.
* Min Humidity...........17-29 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds up to 7 mph shifting to the west
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..........6000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......6 percent.
$$
CAZ268-231945-
Northern Sierra Including Lassen NP and Plumas and Lassen NF/S
West of the Sierra Crest (West of Evans Peak-Grizzly Peak-
Beckworth Peak)-
1237 PM PDT Fri Aug 22 2025
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........59-69.
* 24 HR Trend..........4 degrees warmer.
* Max Humidity...........28-42 percent...except 42-56 percent in
the high mountain valleys.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...South winds up to 8 mph shifting to the east
after midnight.
* Ridges/Upr Slopes....South winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........300 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* Sky/Weather............Partly cloudy in the morning then
clearing.
* Max Temperature........87-95 lower elevations...except 81-89
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........18-24 percent.
* 24 HR Trend..........7 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...South winds 4 to 10 mph.
* Ridges/Upr Slopes....Southwest winds 4 to 10 mph.
* CWR....................0 percent.
* Mixing Height..........7300 ft AGL.
* Chance of thunder......5 percent.
.SATURDAY NIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........59-69.
* Max Humidity...........40-55 percent...except 53-68 percent in
the high mountain valleys.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds 4 to 9 mph shifting to the
east up to 8 mph after midnight.
* Ridges/Upr Slopes....Southwest winds 4 to 9 mph shifting to the
east up to 8 mph after midnight.
* Mixing Height..........300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......2 percent.
.SUNDAY...
* Sky/Weather............Partly cloudy early in the morning then
clearing. A slight chance of showers early in the afternoon. A
slight chance of showers and thunderstorms late in the afternoon.
* Max Temperature........85-91 lower elevations...except 77-85
higher elevations.
* Min Humidity...........23-38 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 4 to 9 mph shifting to the
southwest up to 8 mph in the afternoon.
* Ridges/Upr Slopes....Northeast winds up to 8 mph shifting to the
southwest 4 to 9 mph in the afternoon.
* Mixing Height..........8500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......14 percent.
$$
CAZ221-269-231945-
Stanislaus NF West of the Sierra Crest-
Northern Sierra Including the Tahoe and Eldorado NF/S West of the
Sierra Crest-
1237 PM PDT Fri Aug 22 2025
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........66-75 lower elevations...except 56-66
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........39-54 percent.
* 24 HR Trend..........7 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds up to 7 mph shifting to the east
after midnight.
* Ridges/Upr Slopes....Southeast winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........300 ft AGL.
* Chance of thunder......4 percent.
.SATURDAY...
* Sky/Weather............Mostly sunny in the morning, then partly
cloudy with a chance of showers and a slight chance of
thunderstorms in the afternoon.
* Max Temperature........91-97 lower elevations...except 78-88
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........20-30 percent.
* 24 HR Trend..........6 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds 4 to 9 mph.
* Ridges/Upr Slopes....Southwest winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........7000 ft AGL.
* Chance of thunder......15 percent.
.SATURDAY NIGHT...
* Sky/Weather............Mostly cloudy with a chance of showers
early in the evening, then mostly cloudy with a slight chance of
showers in the late evening and overnight.
* Min Temperature........67-75 lower elevations...except 55-65
higher elevations.
* Max Humidity...........52-67 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds up to 8 mph shifting to the
northeast up to 7 mph after midnight.
* Ridges/Upr Slopes....West winds up to 8 mph shifting to the east
4 to 10 mph after midnight.
* Mixing Height..........300 ft AGL.
* CWR....................10 percent.
* Chance of thunder......10 percent.
.SUNDAY...
* Sky/Weather............Partly cloudy with a slight chance of
showers in the morning, then mostly cloudy with a chance of
showers and a slight chance of thunderstorms in the afternoon.
* Max Temperature........88-94 lower elevations...except 74-84
higher elevations.
* Min Humidity...........26-41 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds up to 7 mph shifting to the
southwest up to 8 mph in the afternoon.
* Ridges/Upr Slopes....East winds up to 8 mph shifting to the
southwest in the afternoon.
* Mixing Height..........8900 ft AGL.
* CWR....................10 percent.
* Chance of thunder......19 percent.
$$
.Extended...
...Shasta County Mountains and Coastal Range
.SUNDAY NIGHT...Mostly clear. Lows 60 to 70. Northwest winds up
to 10 mph.
.MONDAY...Mostly sunny. Highs 86 to 96. East winds up to 10 mph.
.MONDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows 59 to 69. North winds up to 10 mph.
.TUESDAY...Partly cloudy with a slight chance of showers. Highs
85 to 95. Southeast winds up to 10 mph.
.TUESDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows 57 to 67. Variable less than 5 mph.
.WEDNESDAY...Partly cloudy with a slight chance of showers. Highs
79 to 89. Southeast winds up to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows 55 to 65. Variable less than 5 mph.
...Northern Sierra and Lassen Park
.SUNDAY NIGHT...Mostly clear. Lows 59 to 69. Northeast winds up
to 10 mph.
.MONDAY...Partly cloudy with a slight chance of showers and
thunderstorms. Highs 85 to 94. Southwest winds up to 10 mph.
.MONDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows 58 to 68. Northeast winds up to 10 mph.
.TUESDAY...Partly cloudy with a slight chance of showers. Highs
83 to 92. Variable less than 5 mph.
.TUESDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows 56 to 66. Variable less than 5 mph.
.WEDNESDAY...Partly cloudy with a slight chance of showers. Highs
80 to 89. Southwest winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows 54 to 64. Variable less
than 5 mph.
...Sierra Nevada Foothills
.SUNDAY NIGHT...Mostly clear. Lows 67 to 73. East winds up to
10 mph.
.MONDAY...Partly cloudy with a slight chance of showers. Highs
92 to 97. Southwest winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows 67 to 72. East winds up to
10 mph.
.TUESDAY...Partly cloudy with a slight chance of showers. Highs
90 to 96. Variable less than 5 mph.
.TUESDAY NIGHT...Mostly clear. Lows 64 to 70. Variable less than
5 mph.
.WEDNESDAY...Mostly sunny. Highs 87 to 92. Variable less than
5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows 62 to 67. Variable less
than 5 mph.
...Central Valley and Delta
.SUNDAY NIGHT...Clear. Lows 60 to 67. Southwest winds 5 to
15 mph.
.MONDAY...Sunny. Highs 95 to 100. Southwest winds 5 to 15 mph.
.MONDAY NIGHT...Mostly clear. Lows 61 to 68. Southwest winds 5 to
15 mph.
.TUESDAY...Mostly sunny. Highs 94 to 99. Southwest winds up to
10 mph.
.TUESDAY NIGHT...Mostly clear. Lows 60 to 66. Southwest winds up
to 10 mph.
.WEDNESDAY...Mostly sunny. Highs 91 to 96. Southwest winds up to
10 mph.
.WEDNESDAY NIGHT...Clear. Lows 58 to 63. Southwest winds up to
10 mph.
$$