Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
790
FNUS56 KSTO 050923
FWFSTO
Fire Weather Planning Forecast for Interior Northern California
National Weather Service Sacramento CA
122 AM PST Fri Dec 5 2025
.DISCUSSION...
Generally, tranquil weather is expected across the region for the
next several days with overnight and morning fog. Light, terrain
driven winds with offshore flow through the weekend then a return
to onshore flow by early next week. High pressure will remain in
control of our weather pattern for at least the next 7 days.
CAZ213-060100-
Eastern Portion of Shasta-Trinity NF-
122 AM PST Fri Dec 5 2025
.TODAY...
* Sky/Weather............Partly cloudy. At higher elevations, a
slight chance of showers in the afternoon.
* Max Temperature........62-67 lower elevations...except 52-61
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........60-74 percent.
* 24 HR Trend..........17 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds up to 7 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....North winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........1300 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy in the evening then becoming
mostly cloudy. A slight chance of showers.
* Min Temperature........42-47 lower elevations...except 36-43
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........89-100 percent.
* 24 HR Trend..........8 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Drainage winds up to 5 mph.
* Ridges/Upr Slopes....Southwest winds up to 8 mph.
* CWR....................10 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* Sky/Weather............Mostly cloudy early in the morning, then
partly cloudy with a slight chance of rain showers in the late
morning and afternoon.
* Max Temperature........59-64 lower elevations...except 49-57
higher elevations.
* Min Humidity...........66-81 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph.
* Ridges/Upr Slopes....North winds up to 7 mph in the morning
becoming variable up to 5 mph.
* Mixing Height..........2300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ214-060100-
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
122 AM PST Fri Dec 5 2025
.TODAY...
* Sky/Weather............Widespread frost in the morning. Partly
cloudy in the morning, then mostly cloudy with a slight chance of
showers in the afternoon.
* Max Temperature........50-55.
* 24 HR Trend..........Little change.
* Min Humidity...........67-75 percent.
* 24 HR Trend..........27 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph.
* Ridges/Upr Slopes....Variable winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........1300 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear in the evening then becoming
mostly cloudy. At lower elevations, patchy fog in the evening. A
slight chance of showers. At higher elevations, patchy frost
after midnight.
* Min Temperature........33-38.
* 24 HR Trend..........Little change.
* Max Humidity...........95-100 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Drainage winds up to 5 mph.
* Ridges/Upr Slopes....Variable winds up to 5 mph.
* CWR....................10 percent.
* Mixing Height..........700 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* Sky/Weather............Mostly cloudy in the morning then becoming
partly cloudy. At higher elevations, a slight chance of showers
early in the afternoon. Patchy frost early in the morning.
* Max Temperature........49-54.
* Min Humidity...........67-82 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph.
* Ridges/Upr Slopes....Variable winds up to 7 mph.
* Mixing Height..........2500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ215-060100-
Northern Sacramento Valley to Southern Tehama County Line Below
1000 Ft-
122 AM PST Fri Dec 5 2025
.TODAY...
* Sky/Weather............Partly cloudy in the morning then becoming
mostly sunny. Areas of dense fog in the morning.
* Max Temperature........58-64.
* 24 HR Trend..........Little change.
* Min Humidity...........64-74 percent.
* 24 HR Trend..........13 percent up.
* 20-Foot Winds..........North winds up to 7 mph shifting to the
east up to 6 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........1200 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear in the evening then becoming
mostly cloudy. Patchy fog.
* Min Temperature........41-46.
* 24 HR Trend..........Little change.
* Max Humidity...........95-100 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Southeast 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.
.SATURDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
late in the morning then becoming mostly sunny.
* Max Temperature........59-64.
* Min Humidity...........71-86 percent.
* 20-Foot Winds..........North winds up to 5 mph.
* Mixing Height..........1300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ216-060100-
Central Sacramento Valley in Glenn, Colusa, Yuba, Northern
Sutter, and Butte County Below 1000 Ft-
122 AM PST Fri Dec 5 2025
.TODAY...
* Sky/Weather............Partly cloudy. Areas of dense fog in the
morning.
* Max Temperature........52-61.
* 24 HR Trend..........Little change.
* Min Humidity...........66-78 percent.
* 24 HR Trend..........10 percent up.
* 20-Foot Winds..........Northwest winds up to 7 mph shifting to
the southeast up to 6 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........1200 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy. Patchy fog.
* Min Temperature........41-46.
* 24 HR Trend..........Little change.
* Max Humidity...........95-100 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Southeast winds up to 6 mph shifting to
the north after midnight.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
late in the morning then becoming mostly sunny.
* Max Temperature........57-62.
* Min Humidity...........70-85 percent.
* 20-Foot Winds..........Northwest winds up to 6 mph.
* Mixing Height..........1200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ217-060100-
Southern Sacramento Valley in Yolo-
Sacramento Far Western Placer, southern Sutter and Solano County
Below 1000 Ft-
122 AM PST Fri Dec 5 2025
.TODAY...
* Sky/Weather............Mostly cloudy in the morning then becoming
partly cloudy. Widespread dense fog in the morning.
* Max Temperature........51-56.
* 24 HR Trend..........Little change.
* Min Humidity...........69-80 percent.
* 24 HR Trend..........7 percent up.
* 20-Foot Winds..........Southeast winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........1300 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy. Patchy fog.
* Min Temperature........41-46.
* 24 HR Trend..........Little change.
* Max Humidity...........95-100 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........East winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
late in the morning then becoming mostly sunny.
* Max Temperature........56-61.
* Min Humidity...........69-84 percent.
* 20-Foot Winds..........Northwest winds up to 6 mph.
* Mixing Height..........1200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ218-060100-
Carquinez Strait and Delta-
122 AM PST Fri Dec 5 2025
.TODAY...
* Sky/Weather............Mostly cloudy in the morning then becoming
partly cloudy. Widespread dense fog in the morning.
* Max Temperature........52-57.
* 24 HR Trend..........Little change.
* Min Humidity...........67-77 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Southeast winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........1200 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy. Patchy fog.
* Min Temperature........40-45.
* 24 HR Trend..........Little change.
* Max Humidity...........93-98 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........East winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
late in the morning then becoming mostly sunny.
* Max Temperature........56-61.
* Min Humidity...........70-85 percent.
* 20-Foot Winds..........North winds up to 6 mph.
* Mixing Height..........1200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ219-060100-
Northern San Joaquin Valley in San Joaquin and Stanislaus
Counties Below 1000 ft-
122 AM PST Fri Dec 5 2025
.TODAY...
* Sky/Weather............Partly cloudy. Widespread dense fog in the
morning.
* Max Temperature........51-56.
* 24 HR Trend..........Little change.
* Min Humidity...........64-79 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Southeast winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........1200 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear. Patchy fog.
* Min Temperature........40-45.
* 24 HR Trend..........Little change.
* Max Humidity...........94-100 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........Southeast winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* Sky/Weather............Mostly cloudy then becoming partly cloudy
late in the morning then becoming mostly sunny.
* Max Temperature........55-60.
* Min Humidity...........64-79 percent.
* 20-Foot Winds..........Northwest winds up to 7 mph.
* Mixing Height..........1300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ263-279-060100-
Southeast Edge Shasta-Trinity NF and Western Portions of Tehama-
Glenn Unit-Eastern Mendocino NF-
122 AM PST Fri Dec 5 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........63-68 lower elevations...except 53-61
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........60-68 percent.
* 24 HR Trend..........17 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds 4 to 10 mph.
* Ridges/Upr Slopes....Northwest winds 4 to 10 mph.
* CWR....................0 percent.
* Mixing Height..........1300 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear. At lower elevations, patchy
fog after midnight.
* Min Temperature........42-47.
* 24 HR Trend..........Little change.
* Max Humidity...........93-100 percent lower elevations...except
76-85 percent high elevations.
* 24 HR Trend..........10 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds 5 to 11 mph.
* Ridges/Upr Slopes....Northwest winds 5 to 11 mph.
* CWR....................0 percent.
* Mixing Height..........600 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........60-65 lower elevations...except 49-57
higher elevations.
* Min Humidity...........55-70 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds up to 7 mph shifting to the
northeast in the afternoon.
* Ridges/Upr Slopes....West winds 4 to 10 mph.
* Mixing Height..........1900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ266-060100-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
122 AM PST Fri Dec 5 2025
.TODAY...
* Sky/Weather............Mostly sunny in the morning then becoming
partly cloudy. At lower elevations, patchy dense fog in the
morning.
* Max Temperature........58-63.
* 24 HR Trend..........4 degrees warmer.
* Min Humidity...........60-73 percent.
* 24 HR Trend..........14 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 4 to 9 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....Northeast winds up to 8 mph in the morning
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........1000 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear. Patchy fog after midnight.
* Min Temperature........42-47.
* 24 HR Trend..........Little change.
* Max Humidity...........87-100 percent.
* 24 HR Trend..........15 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..........500 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........56-61.
* Min Humidity...........66-81 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...North winds up to 7 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....Variable winds up to 7 mph.
* Mixing Height..........1600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ220-267-060100-
Southern Motherlode From 1000 to 3000 Ft. Includes portions of
Toulumne-Calaveras Unit-
Northern Motherlode From 1000 to 3000 Ft. Includes portions of
Nevada-Yuba-Placer-Amador and Eldorado Units-
122 AM PST Fri Dec 5 2025
.TODAY...
* Sky/Weather............Mostly sunny. At lower elevations, patchy
fog in the morning.
* Max Temperature........53-59.
* 24 HR Trend..........Little change.
* Min Humidity...........61-76 percent.
* 24 HR Trend..........15 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph.
* Ridges/Upr Slopes....North winds up to 7 mph in the morning
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........1200 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear. At lower elevations, patchy
fog after midnight.
* Min Temperature........40-45.
* 24 HR Trend..........Little change.
* Max Humidity...........95-100 percent lower elevations...except
84-99 percent high elevations.
* 24 HR Trend..........9 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Drainage winds up to 5 mph.
* Ridges/Upr Slopes....Variable winds up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* Sky/Weather............Sunny.
* Max Temperature........56-61.
* Min Humidity...........66-81 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph.
* Ridges/Upr Slopes....Variable winds up to 7 mph.
* Mixing Height..........1500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ268-060100-
Northern Sierra Including Lassen NP and Plumas and Lassen NF/S
West of the Sierra Crest (West of Evans Peak-Grizzly Peak-
Beckworth Peak)-
122 AM PST Fri Dec 5 2025
.TODAY...
* Sky/Weather............Partly cloudy. Areas of frost in the
morning.
* Max Temperature........53-58 lower elevations...except 48-54
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........57-70 percent.
* 24 HR Trend..........21 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 4 to 10 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....Northeast winds 4 to 10 mph in the morning
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........1300 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear. Patchy frost after midnight.
* Min Temperature........33-41.
* 24 HR Trend..........Little change.
* Max Humidity...........85-100 percent.
* 24 HR Trend..........5 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southwest winds up to 7 mph.
* Ridges/Upr Slopes....Southwest winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........300 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* Sky/Weather............Partly cloudy early in the morning then
clearing. Patchy frost early in the morning.
* Max Temperature........51-56 lower elevations...except 45-51
higher elevations.
* Min Humidity...........67-82 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...West winds up to 7 mph.
* Ridges/Upr Slopes....West winds up to 7 mph.
* Mixing Height..........2400 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ221-269-060100-
Stanislaus NF West of the Sierra Crest-
Northern Sierra Including the Tahoe and Eldorado NF/S West of the
Sierra Crest-
122 AM PST Fri Dec 5 2025
.TODAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........57-63 lower elevations...except 48-58
higher elevations.
* 24 HR Trend..........5 degrees warmer.
* Min Humidity...........47-59 percent.
* 24 HR Trend..........20 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds up to 7 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....Northeast winds 4 to 10 mph.
* CWR....................0 percent.
* Mixing Height..........1300 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly clear. Areas of frost after
midnight.
* Min Temperature........41-46 lower elevations...except 32-41
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........75-90 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds up to 7 mph.
* Ridges/Upr Slopes....Northeast winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........300 ft AGL.
* Chance of thunder......0 percent.
.SATURDAY...
* Sky/Weather............Sunny. Areas of frost early in the
morning.
* Max Temperature........56-62 lower elevations...except 47-55
higher elevations.
* Min Humidity...........64-79 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph.
* Ridges/Upr Slopes....West winds up to 8 mph.
* Mixing Height..........2500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
.Extended...
...Shasta County Mountains and Coastal Range
.SATURDAY NIGHT...Mostly clear. Lows 33 to 43. Northwest winds up
to 10 mph.
.SUNDAY...Mostly cloudy. Highs 50 to 58. Northwest winds up to
10 mph.
.SUNDAY NIGHT...Mostly clear. Lows 34 to 44. Northwest winds up
to 10 mph.
.MONDAY...Mostly sunny. Highs 53 to 61. Variable less than 5 mph.
.MONDAY NIGHT...Partly cloudy. Lows 37 to 47. Variable less than
5 mph.
.TUESDAY...Mostly cloudy with a slight chance of showers. Highs
53 to 61. Variable less than 5 mph.
.TUESDAY NIGHT...Mostly cloudy with a slight chance of showers.
Lows 38 to 48. Northwest winds up to 10 mph.
...Northern Sierra and Lassen Park
.SATURDAY NIGHT...Mostly clear. Lows 34 to 44. Northeast winds up
to 10 mph.
.SUNDAY...Partly cloudy. Highs 53 to 62. North winds up to
10 mph.
.SUNDAY NIGHT...Mostly clear. Lows 35 to 45. Northeast winds up
to 10 mph.
.MONDAY...Mostly sunny. Highs 56 to 64. Variable less than 5 mph.
.MONDAY NIGHT...Mostly clear. Lows 37 to 47. Variable less than
5 mph.
.TUESDAY...Partly cloudy. Highs 57 to 67. Variable less than
5 mph.
.TUESDAY NIGHT...Partly cloudy. Lows 39 to 49. Variable less than
5 mph.
...Sierra Nevada Foothills
.SATURDAY NIGHT...Mostly clear. Lows 41 to 46. Northeast winds up
to 10 mph.
.SUNDAY...Partly cloudy. Highs 58 to 63. North winds up to
10 mph.
.SUNDAY NIGHT...Mostly clear. Lows 42 to 47. Northeast winds up
to 10 mph.
.MONDAY...Mostly sunny. Highs 59 to 64. Variable less than 5 mph.
.MONDAY NIGHT...Mostly clear. Lows 43 to 48. Variable less than
5 mph.
.TUESDAY...Partly cloudy. Highs 60 to 65. Variable less than
5 mph.
.TUESDAY NIGHT...Mostly cloudy. Lows 46 to 51. Variable less than
5 mph.
...Central Valley and Delta
.SATURDAY NIGHT...Mostly clear. Lows 42 to 47. Variable less than
5 mph.
.SUNDAY...Mostly cloudy. Highs 58 to 63. Variable less than
5 mph.
.SUNDAY NIGHT...Partly cloudy. Lows 43 to 48. Variable less than
5 mph.
.MONDAY...Partly cloudy. Highs 58 to 63. Variable less than
5 mph.
.MONDAY NIGHT...Partly cloudy. Lows 43 to 48. Variable less than
5 mph.
.TUESDAY...Mostly cloudy. Highs 59 to 64. Variable less than
5 mph.
.TUESDAY NIGHT...Mostly cloudy. Lows 44 to 49. Variable less than
5 mph.
$$