Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
307
FNUS56 KSTO 040730
FWFSTO
Fire Weather Planning Forecast for Interior Northern California
National Weather Service Sacramento CA
1230 AM PDT Sat Oct 4 2025
NOTE: THIS PRODUCT HAS UPDATED FORECAST DATA BUT THE FORECAST
DISCUSSION IS FROM THE PREVIOUS DAY.
.DISCUSSION...
The weather system that brought moisture to the area last couple
of days will exit the area this evening. Scattered showers and
isolated mountain thunderstorms south of I-80 will continue to
decrease this evening. Warmer and dry weather is then expected
through the week. The next possible weather system looks to be
late on Thursday and at this time it is expected to not be strong
and also confidence is pretty low for it at this time.
CAZ213-050000-
Eastern Portion of Shasta-Trinity NF-
1230 AM PDT Sat Oct 4 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........74-79 lower elevations...except 63-73
higher elevations.
* 24 HR Trend..........5 degrees warmer.
* Min Humidity...........35-44 percent.
* 24 HR Trend..........16 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds 5 to 11 mph.
* Ridges/Upr Slopes....North winds 5 to 11 mph.
* CWR....................0 percent.
* Mixing Height..........5400 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........50-55 lower elevations...except 39-49
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........62-76 percent lower elevations...except
73-88 percent high elevations.
* 24 HR Trend..........8 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds 8 to 14 mph with local gusts up
to 25 mph.
* Ridges/Upr Slopes....North winds 8 to 14 mph with local gusts up
to 25 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......1 percent.
.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........75-80 lower elevations...except 63-73
higher elevations.
* Min Humidity...........27-42 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 8 to 14 mph with local gusts
up to 25 mph.
* Ridges/Upr Slopes....Northeast winds 8 to 14 mph.
* Mixing Height..........6200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ214-050000-
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
1230 AM PDT Sat Oct 4 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........64-69 lower elevations...except 59-64
higher elevations.
* 24 HR Trend..........5 degrees warmer.
* Min Humidity...........38-44 percent.
* 24 HR Trend..........29 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming northeast
up to 7 mph in the afternoon.
* Ridges/Upr Slopes....Northeast winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........5800 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........33-38.
* 24 HR Trend..........Little change.
* Max Humidity...........91-100 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Drainage winds up to 5 mph becoming
northeast up to 8 mph after midnight.
* Ridges/Upr Slopes....East winds 5 to 11 mph.
* CWR....................0 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......1 percent.
.SUNDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........68-73 lower elevations...except 61-67
higher elevations.
* Min Humidity...........31-46 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds 5 to 11 mph.
* Ridges/Upr Slopes....East winds 5 to 11 mph.
* Mixing Height..........6700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ215-050000-
Northern Sacramento Valley to Southern Tehama County Line Below
1000 Ft-
1230 AM PDT Sat Oct 4 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........77-82.
* 24 HR Trend..........5 degrees warmer.
* Min Humidity...........33-38 percent.
* 24 HR Trend..........22 percent down.
* 20-Foot Winds..........North winds 6 to 12 mph with local gusts
up to 25 mph.
* CWR....................0 percent.
* Mixing Height..........4700 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........52-57.
* 24 HR Trend..........Little change.
* Max Humidity...........62-76 percent.
* 24 HR Trend..........19 percent down.
* 20-Foot Winds..........North winds 6 to 12 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......1 percent.
.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........78-83.
* Min Humidity...........26-41 percent.
* 20-Foot Winds..........North winds 8 to 14 mph with local gusts
up to 25 mph.
* Mixing Height..........5000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ216-050000-
Central Sacramento Valley in Glenn, Colusa, Yuba, Northern
Sutter, and Butte County Below 1000 Ft-
1230 AM PDT Sat Oct 4 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........75-80.
* 24 HR Trend..........5 degrees warmer.
* Min Humidity...........36-46 percent.
* 24 HR Trend..........28 percent down.
* 20-Foot Winds..........Northwest winds 5 to 11 mph with local
gusts up to 20 mph.
* CWR....................0 percent.
* Mixing Height..........4000 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........50-55.
* 24 HR Trend..........Little change.
* Max Humidity...........71-86 percent.
* 24 HR Trend..........14 percent down.
* 20-Foot Winds..........Northwest winds 4 to 9 mph. Local gusts up
to 20 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........76-81.
* Min Humidity...........37-52 percent.
* 20-Foot Winds..........North winds 5 to 11 mph with local gusts
up to 20 mph.
* Mixing Height..........3200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ217-050000-
Southern Sacramento Valley in Yolo-
Sacramento Far Western Placer, southern Sutter and Solano County
Below 1000 Ft-
1230 AM PDT Sat Oct 4 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........75-80.
* 24 HR Trend..........5 degrees warmer.
* Min Humidity...........33-48 percent.
* 24 HR Trend..........24 percent down.
* 20-Foot Winds..........Northwest winds 4 to 9 mph. Local gusts up
to 20 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........4600 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........50-55.
* 24 HR Trend..........Little change.
* Max Humidity...........75-90 percent.
* 24 HR Trend..........9 percent down.
* 20-Foot Winds..........Northwest winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......0 percent.
.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........77-82.
* Min Humidity...........36-51 percent.
* 20-Foot Winds..........Northeast winds 4 to 10 mph shifting to
the northwest 5 to 11 mph with local gusts up to 20 mph in the
afternoon.
* Mixing Height..........3300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ218-050000-
Carquinez Strait and Delta-
1230 AM PDT Sat Oct 4 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........77-82.
* 24 HR Trend..........5 degrees warmer.
* Min Humidity...........39-44 percent.
* 24 HR Trend..........19 percent down.
* 20-Foot Winds..........West winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........5100 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........52-57.
* 24 HR Trend..........Little change.
* Max Humidity...........84-90 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........West winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......0 percent.
.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........77-82.
* Min Humidity...........40-55 percent.
* 20-Foot Winds..........Northwest winds 4 to 10 mph.
* Mixing Height..........3500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ219-050000-
Northern San Joaquin Valley in San Joaquin and Stanislaus
Counties Below 1000 ft-
1230 AM PDT Sat Oct 4 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........74-79.
* 24 HR Trend..........5 degrees warmer.
* Min Humidity...........40-52 percent.
* 24 HR Trend..........16 percent down.
* 20-Foot Winds..........Northwest winds 5 to 11 mph. Local gusts
up to 20 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........4800 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Clear.
* Min Temperature........52-57.
* 24 HR Trend..........Little change.
* Max Humidity...........75-90 percent.
* 24 HR Trend..........10 percent down.
* 20-Foot Winds..........Northwest winds up to 8 mph shifting to
the east after midnight.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......0 percent.
.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........75-80.
* Min Humidity...........35-50 percent.
* 20-Foot Winds..........Southeast winds up to 7 mph shifting to
the northwest up to 8 mph in the afternoon.
* Mixing Height..........3800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ263-279-050000-
Southeast Edge Shasta-Trinity NF and Western Portions of Tehama-
Glenn Unit-Eastern Mendocino NF-
1230 AM PDT Sat Oct 4 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........74-79 lower elevations...except 59-69
higher elevations.
* 24 HR Trend..........5 degrees warmer.
* Min Humidity...........33-43 percent.
* 24 HR Trend..........21 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds 5 to 11 mph.
* Ridges/Upr Slopes....North winds 5 to 11 mph.
* CWR....................0 percent.
* Mixing Height..........4500 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........55-60 lower elevations...except 44-52
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........55-68 percent.
* 24 HR Trend..........10 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds 6 to 12 mph.
* Ridges/Upr Slopes....Northwest winds 6 to 12 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........75-80 lower elevations...except 59-67
higher elevations.
* Min Humidity...........30-39 percent lower elevations...except
35-50 percent high elevations.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds 6 to 12 mph.
* Ridges/Upr Slopes....Northwest winds 7 to 13 mph shifting to the
northeast 5 to 11 mph in the afternoon.
* Mixing Height..........4600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ266-050000-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
1230 AM PDT Sat Oct 4 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........69-75.
* 24 HR Trend..........7 degrees warmer.
* Min Humidity...........37-49 percent.
* 24 HR Trend..........29 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds 5 to 11 mph.
* Ridges/Upr Slopes....Northwest winds 5 to 11 mph.
* CWR....................0 percent.
* Mixing Height..........4400 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........50-57.
* 24 HR Trend..........Little change.
* Max Humidity...........56-70 percent.
* 24 HR Trend..........26 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 6 to 12 mph.
* Ridges/Upr Slopes....Northeast winds 6 to 12 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........70-76.
* Min Humidity...........33-48 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 11 to 17 mph shifting to the
northwest 4 to 9 mph in the afternoon.
* Ridges/Upr Slopes....Northeast winds 9 to 15 mph shifting to the
northwest 5 to 11 mph in the afternoon.
* Mixing Height..........4800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ220-267-050000-
Southern Motherlode From 1000 to 3000 Ft. Includes portions of
Toulumne-Calaveras Unit-
Northern Motherlode From 1000 to 3000 Ft. Includes portions of
Nevada-Yuba-Placer-Amador and Eldorado Units-
1230 AM PDT Sat Oct 4 2025
.TODAY...
* Sky/Weather............Sunny.
* Max Temperature........68-73.
* 24 HR Trend..........7 degrees warmer.
* Min Humidity...........50-56 percent.
* 24 HR Trend..........25 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming west up
to 8 mph in the afternoon.
* Ridges/Upr Slopes....East winds up to 7 mph shifting to the west
in the afternoon.
* CWR....................0 percent.
* Mixing Height..........4100 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........48-53.
* 24 HR Trend..........Little change.
* Max Humidity...........69-80 percent.
* 24 HR Trend..........15 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Drainage winds up to 5 mph becoming east up
to 7 mph after midnight.
* Ridges/Upr Slopes....Northeast winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........71-76.
* Min Humidity...........38-53 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds up to 7 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....East winds 4 to 10 mph in the morning
becoming variable up to 5 mph.
* Mixing Height..........4000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ268-050000-
Northern Sierra Including Lassen NP and Plumas and Lassen NF/S
West of the Sierra Crest (West of Evans Peak-Grizzly Peak-
Beckworth Peak)-
1230 AM PDT Sat Oct 4 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........61-67 lower elevations...except 55-62
higher elevations.
* 24 HR Trend..........9 degrees warmer.
* Min Humidity...........34-48 percent.
* 24 HR Trend..........36 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds 5 to 11 mph.
* Ridges/Upr Slopes....North winds 5 to 11 mph.
* CWR....................0 percent.
* Mixing Height..........4700 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........36-46 lower elevations...except 33-41
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........73-88 percent...except 94-100 percent in
the high mountain valleys.
* 24 HR Trend..........12 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 7 to 13 mph.
* Ridges/Upr Slopes....Northeast winds 7 to 13 mph.
* CWR....................0 percent.
* Mixing Height..........300 ft AGL.
* Chance of thunder......1 percent.
.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........62-68 lower elevations...except 55-63
higher elevations.
* Min Humidity...........35-50 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds 8 to 14 mph.
* Ridges/Upr Slopes....East winds 8 to 14 mph.
* Mixing Height..........5700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ221-269-050000-
Stanislaus NF West of the Sierra Crest-
Northern Sierra Including the Tahoe and Eldorado NF/S West of the
Sierra Crest-
1230 AM PDT Sat Oct 4 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........64-69 lower elevations...except 52-62
higher elevations.
* 24 HR Trend..........10 degrees warmer.
* Min Humidity...........42-55 percent.
* 24 HR Trend..........31 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds up to 8 mph shifting to the
west up to 7 mph in the afternoon.
* Ridges/Upr Slopes....Northeast winds 5 to 11 mph shifting to the
northwest up to 8 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........4100 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........44-50 lower elevations...except 33-43
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........66-81 percent.
* 24 HR Trend..........20 percent down.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 8 to 14 mph.
* Ridges/Upr Slopes....East winds 8 to 14 mph.
* CWR....................0 percent.
* Mixing Height..........300 ft AGL.
* Chance of thunder......1 percent.
.SUNDAY...
* Sky/Weather............Sunny.
* Max Temperature........66-72 lower elevations...except 53-63
higher elevations.
* Min Humidity...........42-57 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds 6 to 12 mph shifting to the
southwest up to 7 mph in the afternoon.
* Ridges/Upr Slopes....East winds 9 to 15 mph shifting to the south
4 to 9 mph in the afternoon.
* Mixing Height..........5200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
$$
.Extended...
...Shasta County Mountains and Coastal Range
.SUNDAY NIGHT...Clear. Lows 40 to 50. North winds 5 to 15 mph.
.MONDAY...Sunny. Highs 65 to 75. Northeast winds 10 to 20 mph.
.MONDAY NIGHT...Clear. Lows 42 to 52. North winds 5 to 15 mph.
.TUESDAY...Sunny. Highs 68 to 78. North winds up to 10 mph.
.TUESDAY NIGHT...Clear. Lows 42 to 52. Variable less than 5 mph.
.WEDNESDAY...Sunny. Highs 65 to 74. Southwest winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows 41 to 51. Variable less
than 5 mph.
...Northern Sierra and Lassen Park
.SUNDAY NIGHT...Clear. Lows 40 to 50. Northeast winds 5 to
15 mph.
.MONDAY...Sunny. Highs 66 to 76. East winds 10 to 20 mph.
.MONDAY NIGHT...Clear. Lows 41 to 51. Northeast winds 5 to
15 mph.
.TUESDAY...Sunny. Highs 70 to 78. Southwest winds up to 10 mph.
.TUESDAY NIGHT...Clear. Lows 43 to 53. Variable less than 5 mph.
.WEDNESDAY...Sunny. Highs 67 to 76. South winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows 43 to 53. Variable less
than 5 mph.
...Sierra Nevada Foothills
.SUNDAY NIGHT...Clear. Lows 51 to 57. Northeast winds 5 to
15 mph.
.MONDAY...Sunny. Highs 75 to 80. North winds 10 to 20 mph.
.MONDAY NIGHT...Clear. Lows 53 to 58. Northeast winds 5 to
15 mph.
.TUESDAY...Sunny. Highs 76 to 81. Variable less than 5 mph.
.TUESDAY NIGHT...Clear. Lows 53 to 58. Variable less than 5 mph.
.WEDNESDAY...Sunny. Highs 74 to 80. Variable less than 5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows 53 to 58. Variable less
than 5 mph.
...Central Valley and Delta
.SUNDAY NIGHT...Clear. Lows 51 to 56. North winds 5 to 15 mph.
.MONDAY...Sunny. Highs 80 to 85. Northwest winds 5 to 15 mph.
.MONDAY NIGHT...Clear. Lows 52 to 57. Northwest winds up to
10 mph.
.TUESDAY...Sunny. Highs 82 to 87. Northwest winds 5 to 10 mph.
.TUESDAY NIGHT...Clear. Lows 53 to 58. Variable less than 5 mph.
.WEDNESDAY...Sunny. Highs 80 to 85. Variable less than 5 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows 52 to 57. Variable less
than 5 mph.
$$