Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
317
FNUS56 KSTO 040903
FWFSTO
Fire Weather Planning Forecast for Interior Northern California
National Weather Service Sacramento CA
202 AM PDT Sun Oct 4 2026
.DISCUSSION...
Unseasonably hot temperatures and mostly dry conditions are
expected to continue through the middle of the week, although
there is a 10-15% chance for an isolated shower or thunderstorm
along the Sierra and adjacent foothills north of Highway 50
tonight into Monday. Winds remain light and terrain driven with
periodically breezy easterly winds during the overnight hours for
the mountains. Low daytime humidities in the teens to low 20s and
locally into the single digits are expected each day alongside
poor to limited overnight recoveries through the end of the week.
Cooler temperatures and improving humidities are then anticipated
Friday into next weekend.
CAZ121-050000-
W. Shasta County Above 3000 ft-
202 AM PDT Sun Oct 4 2026
.TODAY...
* Sky/Weather............Partly cloudy in the morning then becoming
mostly cloudy.
* Max Temperature........80-88.
* 24 HR Trend..........Little change.
* Min Humidity...........17-22 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........
* Ridges/Upr Slopes....North winds 4 to 9 mph in the morning
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........5900 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then
clearing. Patchy smoke in the evening.
* Min Temperature........57-66.
* 24 HR Trend..........Little change.
* Max Humidity...........31-46 percent.
* 24 HR Trend..........6 percent up.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Northwest winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........81-89.
* Min Humidity...........17-24 percent.
* 20-Foot Winds..........
* Ridges/Upr Slopes....North winds 4 to 9 mph in the morning
becoming variable up to 5 mph.
* Mixing Height..........10300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ122-050000-
W. Shasta County 1000-3000 ft-
Including the city of Whiskeytown
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........93-98 lower elevations...except 87-93
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........16-21 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds 4 to 9 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....Northwest winds 4 to 9 mph with local gusts
up to 20 mph in the morning becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........4800 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then
clearing.
* Min Temperature........64-71 lower elevations...except 57-67
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........32-46 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds 4 to 9 mph.
* Ridges/Upr Slopes....Northwest winds 4 to 10 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........97-102 lower elevations...except 90-95
higher elevations.
* Min Humidity...........15-21 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northwest winds up to 8 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....Northwest winds 5 to 11 mph in the morning
becoming variable up to 5 mph.
* Mixing Height..........8800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ123-050000-
Shasta Lake Area & 1-5 1000-3000 ft-
Including the city of Shasta Lake, Sims
202 AM PDT Sun Oct 4 2026
.TODAY...
* Sky/Weather............Partly cloudy in the morning then becoming
mostly cloudy.
* Max Temperature........89-95.
* 24 HR Trend..........Little change.
* Min Humidity...........12-17 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........North winds 4 to 9 mph shifting to the
south up to 5 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........4800 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
partly cloudy.
* Min Temperature........63-68 lower elevations...except 58-66
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........35-50 percent.
* 24 HR Trend..........7 percent up.
* 20-Foot Winds..........North winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........94-99 lower elevations...except 89-95
higher elevations.
* Min Humidity...........15-22 percent.
* 20-Foot Winds..........North winds 4 to 9 mph shifting to the
south up to 5 mph in the afternoon.
* Mixing Height..........9500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ124-050000-
Shasta Metro-
Including the city of Redding, Anderson
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Partly cloudy in the morning then becoming
mostly cloudy.
* Max Temperature........95-100.
* 24 HR Trend..........Little change.
* Min Humidity...........12-17 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........North winds up to 7 mph in the morning
becoming variable less than 5 mph.
* CWR....................0 percent.
* Mixing Height..........3900 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then
clearing.
* Min Temperature........61-68.
* 24 HR Trend..........Little change.
* Max Humidity...........41-52 percent.
* 24 HR Trend..........7 percent up.
* 20-Foot Winds..........North winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........98-103.
* Min Humidity...........11-16 percent.
* 20-Foot Winds..........North winds up to 7 mph in the morning
becoming variable less than 5 mph.
* Mixing Height..........7500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ125-050000-
Shasta County Foothills 1000-3000 ft-
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Partly cloudy in the morning then becoming
mostly cloudy.
* Max Temperature........91-96.
* 24 HR Trend..........Little change.
* Min Humidity...........11-16 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph.
* Ridges/Upr Slopes....East winds up to 7 mph in the morning
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........4200 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
partly cloudy.
* Min Temperature........63-68.
* 24 HR Trend..........Little change.
* Max Humidity...........39-44 percent.
* 24 HR Trend..........7 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Drainage winds up to 5 mph becoming east up
to 7 mph after midnight.
* Ridges/Upr Slopes....Variable winds up to 5 mph becoming east up
to 7 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.MONDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........93-98.
* Min Humidity...........13-18 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds up to 7 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....East winds up to 7 mph in the morning
becoming variable up to 5 mph.
* Mixing Height..........7600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ126-050000-
E. Shasta /S. Cascades Above 3000 ft-
Including the city of Shingletown
202 AM PDT Sun Oct 4 2026
.TODAY...
* Sky/Weather............Partly cloudy in the morning then becoming
mostly cloudy.
* Max Temperature........79-88.
* 24 HR Trend..........Little change.
* Min Humidity...........14-19 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds 4 to 9 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....East winds 4 to 9 mph in the morning
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........4400 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
partly cloudy.
* Min Temperature........51-61.
* 24 HR Trend..........Little change.
* Max Humidity...........38-52 percent.
* 24 HR Trend..........9 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Drainage winds up to 5 mph becoming east up
to 7 mph after midnight.
* Ridges/Upr Slopes....Northeast winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......2 percent.
.MONDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........80-88.
* Min Humidity...........17-26 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds up to 7 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....East winds up to 8 mph in the morning
becoming variable up to 5 mph.
* Mixing Height..........8900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ127-050000-
Burney Basin-
Including the city of Burney
202 AM PDT Sun Oct 4 2026
.TODAY...
* Sky/Weather............Partly cloudy in the morning then becoming
mostly cloudy.
* Max Temperature........84-89 lower elevations...except 78-85
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........14-19 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph.
* Ridges/Upr Slopes....Southeast winds up to 7 mph in the morning
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........4900 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy.
* Min Temperature........48-56.
* 24 HR Trend..........Little change.
* Max Humidity...........44-59 percent.
* 24 HR Trend..........10 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......2 percent.
.MONDAY...
* Sky/Weather............Partly cloudy early in the morning then
clearing.
* Max Temperature........84-90 lower elevations...except 77-85
higher elevations.
* Min Humidity...........17-26 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph.
* Ridges/Upr Slopes....Variable winds up to 7 mph.
* Mixing Height..........9500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ128-050000-
Lassen Volcanic NP-
Including the city of Lassen National Park
202 AM PDT Sun Oct 4 2026
.TODAY...
* Sky/Weather............Partly cloudy in the morning then becoming
mostly cloudy.
* Max Temperature........71-78.
* 24 HR Trend..........Little change.
* Min Humidity...........16-21 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........South winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........7000 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy.
* Min Temperature........51-56.
* 24 HR Trend..........Little change.
* Max Humidity...........39-45 percent.
* 24 HR Trend..........11 percent up.
* 20-Foot Winds..........Southwest winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......4 percent.
.MONDAY...
* Sky/Weather............Partly cloudy then becoming mostly sunny
in the late morning and early afternoon then becoming partly
cloudy.
* Max Temperature........69-77.
* Min Humidity...........19-29 percent.
* 20-Foot Winds..........Southeast winds up to 8 mph shifting to
the west up to 6 mph in the afternoon.
* Mixing Height..........10200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......2 percent.
$$
CAZ129-050000-
Sierra (Tehama-Plumas) 1000-3000 ft-
Including the city of Paradise
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Partly cloudy in the morning then becoming
mostly cloudy.
* Max Temperature........89-94.
* 24 HR Trend..........Little change.
* Min Humidity...........13-18 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds 9 to 15 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....East winds 6 to 12 mph in the morning
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........4200 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
partly cloudy.
* Min Temperature........67-72.
* 24 HR Trend..........Little change.
* Max Humidity...........30-38 percent.
* 24 HR Trend..........5 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds 4 to 10 mph.
* Ridges/Upr Slopes....East winds 4 to 10 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......3 percent.
.MONDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........91-96.
* Min Humidity...........15-22 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 9 to 15 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....East winds 5 to 11 mph in the morning
becoming variable up to 5 mph.
* Mixing Height..........7800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ130-050000-
Sierra (Tehama-Plumas) Above 3000 ft-
Including the city of Mineral, Quincy
202 AM PDT Sun Oct 4 2026
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........82-88 lower elevations...except 76-83
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........14-19 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds 6 to 12 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....East winds 6 to 12 mph shifting to the
southwest up to 7 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........6700 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy.
* Min Temperature........53-63.
* 24 HR Trend..........Little change.
* Max Humidity...........38-53 percent.
* 24 HR Trend..........8 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds up to 8 mph.
* Ridges/Upr Slopes....Variable winds up to 5 mph becoming
northeast 4 to 9 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......6 percent.
.MONDAY...
* Sky/Weather............Partly cloudy early in the morning then
clearing.
* Max Temperature........81-87 lower elevations...except 75-83
higher elevations.
* Min Humidity...........17-29 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 5 to 11 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....Northeast winds 5 to 11 mph shifting to the
west up to 7 mph in the afternoon.
* Mixing Height..........10100 ft AGL.
* CWR....................0 percent.
* Chance of thunder......2 percent.
$$
CAZ131-050000-
N. Motherlode 1000-3000 ft-
Including the city of Auburn, Grass Valley, Colfax, Nevada City
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........92-97.
* 24 HR Trend..........Little change.
* Min Humidity...........12-17 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........East winds up to 7 mph shifting to the
southwest up to 6 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........5800 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
partly cloudy.
* Min Temperature........64-69.
* 24 HR Trend..........Little change.
* Max Humidity...........39-46 percent.
* 24 HR Trend..........5 percent up.
* 20-Foot Winds..........Northeast winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......8 percent.
.MONDAY...
* Sky/Weather............Partly cloudy early in the morning then
clearing.
* Max Temperature........92-97.
* Min Humidity...........15-23 percent.
* 20-Foot Winds..........Northeast winds up to 7 mph shifting to
the west in the afternoon.
* Mixing Height..........8900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......2 percent.
$$
CAZ132-050000-
Sierra (Yuba-Placer) 3000-5000 ft-
202 AM PDT Sun Oct 4 2026
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........83-92.
* 24 HR Trend..........Little change.
* Min Humidity...........14-19 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........East winds up to 8 mph shifting to the
southwest up to 7 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........7500 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy. A slight chance of rain
after midnight.
* Min Temperature........59-69.
* 24 HR Trend..........Little change.
* Max Humidity...........31-46 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........Northeast winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......10 percent.
.MONDAY...
* Sky/Weather............Partly cloudy early in the morning then
clearing.
* Max Temperature........82-90.
* Min Humidity...........18-25 percent.
* 20-Foot Winds..........East winds up to 8 mph shifting to the
west up to 7 mph in the afternoon.
* Mixing Height..........10000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......5 percent.
$$
CAZ133-050000-
Sierra (Sierra-Placer) Above 5000 ft-
Including the city of Blue Canyon, Kingvale, Donner Peak
202 AM PDT Sun Oct 4 2026
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........74-83.
* 24 HR Trend..........Little change.
* Min Humidity...........17-22 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Southeast winds 4 to 9 mph shifting to the
southwest up to 8 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........7200 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy. A slight chance of rain
after midnight.
* Min Temperature........52-62.
* 24 HR Trend..........Little change.
* Max Humidity...........34-47 percent.
* 24 HR Trend..........6 percent up.
* 20-Foot Winds..........Northeast winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......9 percent.
.MONDAY...
* Sky/Weather............Partly cloudy early in the morning then
clearing.
* Max Temperature........72-80.
* Min Humidity...........21-30 percent.
* 20-Foot Winds..........East winds up to 7 mph shifting to the
west in the afternoon.
* Mixing Height..........9600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......8 percent.
$$
CAZ134-050000-
Central Motherlode 1000-3000 ft-
Including the city of Cameron Park, Shingle Springs, Placerville,
Cool, Jackson
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy. Patchy smoke in the
afternoon.
* Max Temperature........93-98.
* 24 HR Trend..........Little change.
* Min Humidity...........11-16 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds up to 7 mph in the morning
becoming upslope up to 5 mph.
* Ridges/Upr Slopes....East winds up to 7 mph in the morning
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........6100 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
mostly clear.
* Min Temperature........68-73.
* 24 HR Trend..........Little change.
* Max Humidity...........33-40 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds up to 7 mph.
* Ridges/Upr Slopes....East winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......3 percent.
.MONDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........95-100 lower elevations...except 90-95
higher elevations.
* Min Humidity...........15-20 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds up to 8 mph shifting to the west
up to 7 mph in the afternoon.
* Ridges/Upr Slopes....East winds up to 8 mph in the morning
becoming variable up to 5 mph.
* Mixing Height..........8500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......2 percent.
$$
CAZ135-050000-
Sierra 3000-5000 ft-
Including the city of Pollock Pines
202 AM PDT Sun Oct 4 2026
.TODAY...
* Sky/Weather............Partly cloudy in the morning then becoming
mostly cloudy.
* Max Temperature........87-92.
* 24 HR Trend..........Little change.
* Min Humidity...........13-18 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Southeast winds up to 7 mph shifting to the
west in the afternoon.
* Ridges/Upr Slopes....Variable winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........8100 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
mostly clear.
* Min Temperature........60-69 lower elevations...except 69-74
higher elevations.
* 24 HR Trend..........Little change.
* Max Humidity...........32-47 percent.
* 24 HR Trend..........6 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds up to 7 mph.
* Ridges/Upr Slopes....Northeast 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......5 percent.
.MONDAY...
* Sky/Weather............Partly cloudy early in the morning then
clearing.
* Max Temperature........85-91.
* Min Humidity...........19-26 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 up to 7 mph in the morning
becoming variable up to 5 mph.
* Mixing Height..........10800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......5 percent.
$$
CAZ136-050000-
Sierra (El Dorado-Amador) Above 5000 ft-
Including the city of Carson Pass
202 AM PDT Sun Oct 4 2026
.TODAY...
* Sky/Weather............Partly cloudy in the morning then becoming
mostly cloudy.
* Max Temperature........74-84.
* 24 HR Trend..........Little change.
* Min Humidity...........18-23 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Ridges/Upr Slopes....South winds up to 8 mph shifting to the west
in the afternoon.
* CWR....................0 percent.
* Mixing Height..........7900 ft AGL.
* Chance of thunder......2 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
mostly clear.
* Min Temperature........49-58.
* 24 HR Trend..........Little change.
* Max Humidity...........37-49 percent.
* 24 HR Trend..........8 percent up.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Northeast winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......6 percent.
.MONDAY...
* Sky/Weather............Partly cloudy early in the morning then
clearing.
* Max Temperature........69-79.
* Min Humidity...........22-33 percent.
* 20-Foot Winds..........
* Ridges/Upr Slopes....East winds up to 7 mph shifting to the west
in the afternoon.
* Mixing Height..........9800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......6 percent.
$$
CAZ137-050000-
Southern Motherlode 1000-3000 ft-
Including the city of Sonora, Angels Camp
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Partly cloudy in the morning then becoming
mostly cloudy. Patchy smoke.
* Max Temperature........94-99.
* 24 HR Trend..........Little change.
* Min Humidity...........12-17 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds up to 7 mph shifting to the
southwest in the afternoon.
* Ridges/Upr Slopes....East winds 4 to 9 mph in the morning
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........6800 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........66-72.
* 24 HR Trend..........Little change.
* Max Humidity...........35-42 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 4 to 9 mph.
* Ridges/Upr Slopes....Northeast winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.MONDAY...
* Sky/Weather............Mostly sunny. Patchy smoke late in the
morning.
* Max Temperature........93-98.
* Min Humidity...........16-23 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds up to 8 mph shifting to the west
up to 7 mph in the afternoon.
* Ridges/Upr Slopes....East winds 4 to 9 mph shifting to the west
up to 7 mph in the afternoon.
* Mixing Height..........8600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
$$
CAZ138-050000-
Sierra (Cal-Tuo) 3000-5000 ft-
Including the city of Twain Harte, Arnold
202 AM PDT Sun Oct 4 2026
.TODAY...
* Sky/Weather............Partly cloudy in the morning then becoming
mostly cloudy. Patchy smoke.
* Max Temperature........86-93.
* 24 HR Trend..........Little change.
* Min Humidity...........14-19 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...East winds 4 to 10 mph shifting to the
southwest up to 8 mph in the afternoon.
* Ridges/Upr Slopes....East winds 4 to 9 mph shifting to the
southwest up to 7 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........8300 ft AGL.
* Chance of thunder......2 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........61-69.
* 24 HR Trend..........Little change.
* Max Humidity...........34-45 percent.
* 24 HR Trend..........6 percent up.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 5 to 11 mph. Local gusts up
to 20 mph in the evening.
* Ridges/Upr Slopes....Northeast winds 5 to 11 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......2 percent.
.MONDAY...
* Sky/Weather............Mostly sunny. Patchy smoke early in the
morning.
* Max Temperature........84-90.
* Min Humidity...........18-28 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Northeast winds 5 to 11 mph shifting to the
west up to 8 mph in the afternoon.
* Ridges/Upr Slopes....Northeast winds 5 to 11 mph shifting to the
west up to 8 mph in the afternoon.
* Mixing Height..........10700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ139-050000-
Sierra (Cal-Tuo) Above 5000 ft-
Including the city of Twain Harte, Arnold
202 AM PDT Sun Oct 4 2026
.TODAY...
* Sky/Weather............Partly cloudy in the morning then becoming
mostly cloudy.
* Max Temperature........73-83.
* 24 HR Trend..........Little change.
* Min Humidity...........18-23 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Southeast winds 5 to 11 mph shifting to the
west up to 8 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........7600 ft AGL.
* Chance of thunder......2 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........48-58.
* 24 HR Trend..........Little change.
* Max Humidity...........42-57 percent.
* 24 HR Trend..........11 percent up.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Northeast winds 4 to 10 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......2 percent.
.MONDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........69-79.
* Min Humidity...........21-36 percent.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Northeast winds 5 to 11 mph shifting to the
west up to 8 mph in the afternoon.
* Mixing Height..........9500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......6 percent.
$$
CAZ140-050000-
Tehama Co Coast Range Above 3000 ft-
202 AM PDT Sun Oct 4 2026
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........76-85.
* 24 HR Trend..........Little change.
* Min Humidity...........18-23 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........West winds up to 8 mph shifting to the
southeast up to 6 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........6000 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy in the evening then
clearing.
* Min Temperature........62-68.
* 24 HR Trend..........Little change.
* Max Humidity...........28-33 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........77-85.
* Min Humidity...........19-26 percent.
* 20-Foot Winds..........Northwest winds up to 8 mph shifting to
the east up to 7 mph in the afternoon.
* Mixing Height..........9000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ141-050000-
W Tehama Co Foothills 1000-3000 ft-
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........92-97 lower elevations...except 84-89
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........15-20 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds up to 8 mph shifting to
the east up to 6 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........3500 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy in the evening then
clearing.
* Min Temperature........68-74.
* 24 HR Trend..........Little change.
* Max Humidity...........29-35 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........West winds 4 to 9 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........96-101 lower elevations...except 86-91
higher elevations.
* Min Humidity...........15-22 percent.
* 20-Foot Winds..........Northwest winds up to 8 mph shifting to
the east up to 6 mph in the afternoon.
* Mixing Height..........6700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ142-050000-
N. Sac Valley in Tehama County-
Including the city of Red Bluff
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........94-99.
* 24 HR Trend..........Little change.
* Min Humidity...........12-17 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........North winds up to 6 mph shifting to the
southeast up to 5 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........3300 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........63-68.
* 24 HR Trend..........Little change.
* Max Humidity...........39-50 percent.
* 24 HR Trend..........7 percent up.
* 20-Foot Winds..........Northwest winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........97-102.
* Min Humidity...........12-17 percent.
* 20-Foot Winds..........North winds up to 7 mph.
* Mixing Height..........6700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ143-050000-
Glenn/Colusa Coast Range Above 3000 ft-
202 AM PDT Sun Oct 4 2026
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........77-86.
* 24 HR Trend..........Little change.
* Min Humidity...........17-22 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........West winds up to 7 mph shifting to the
southeast up to 6 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........5900 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy in the evening then
clearing.
* Min Temperature........64-71.
* 24 HR Trend..........Little change.
* Max Humidity...........26-31 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......1 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........78-86.
* Min Humidity...........18-28 percent.
* 20-Foot Winds..........Northwest winds up to 7 mph shifting to
the southeast in the afternoon.
* Mixing Height..........10200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ144-050000-
Central Glenn Co & Interstate 5-
Including the city of Willows, Orland
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........93-98.
* 24 HR Trend..........Little change.
* Min Humidity...........13-18 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........North winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........3200 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........62-67.
* 24 HR Trend..........Little change.
* Max Humidity...........41-54 percent.
* 24 HR Trend..........5 percent up.
* 20-Foot Winds..........West winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......2 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........96-101.
* Min Humidity...........12-17 percent.
* 20-Foot Winds..........North winds up to 7 mph.
* Mixing Height..........5300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ145-050000-
Eastern Glenn County-
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........93-98.
* 24 HR Trend..........Little change.
* Min Humidity...........14-19 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........2500 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then
clearing.
* Min Temperature........60-65.
* 24 HR Trend..........Little change.
* Max Humidity...........54-62 percent.
* 24 HR Trend..........6 percent up.
* 20-Foot Winds..........Variable winds less than 5 mph becoming
northwest up to 5 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......3 percent.
.MONDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........96-101.
* Min Humidity...........12-17 percent.
* 20-Foot Winds..........North winds up to 6 mph.
* Mixing Height..........4900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ146-050000-
Butte County Below 1000 ft-
Including the city of Chico, Oroville, Gridley
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........93-98.
* 24 HR Trend..........Little change.
* Min Humidity...........14-19 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........West winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........2200 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
mostly clear.
* Min Temperature........61-69.
* 24 HR Trend..........Little change.
* Max Humidity...........44-59 percent.
* 24 HR Trend..........6 percent up.
* 20-Foot Winds..........Northeast winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......3 percent.
.MONDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........96-101.
* Min Humidity...........13-18 percent.
* 20-Foot Winds..........Northwest winds up to 7 mph.
* Mixing Height..........5500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ147-050000-
W. Glenn/Colusa Foothills 1000-3000 ft-
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........92-97 lower elevations...except 85-90
higher elevations.
* 24 HR Trend..........Little change.
* Min Humidity...........14-19 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph.
* Ridges/Upr Slopes....Northwest winds up to 7 mph in the morning
becoming variable up to 5 mph.
* CWR....................0 percent.
* Mixing Height..........4000 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........63-73.
* 24 HR Trend..........Little change.
* Max Humidity...........30-42 percent.
* 24 HR Trend..........Little change.
* 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..........500 ft AGL.
* Chance of thunder......1 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........94-99 lower elevations...except 86-91
higher elevations.
* Min Humidity...........16-25 percent.
* 20-Foot Winds..........
* Valleys/Lwr Slopes...Upslope winds up to 5 mph becoming east up
to 7 mph in the afternoon.
* Ridges/Upr Slopes....Northwest winds up to 7 mph shifting to the
east in the afternoon.
* Mixing Height..........8900 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ148-050000-
Central Colusa County Incl. I-5-
Including the city of Williams
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........93-98.
* 24 HR Trend..........Little change.
* Min Humidity...........15-20 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........North winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........2700 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........64-70.
* 24 HR Trend..........Little change.
* Max Humidity...........41-56 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........West winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......2 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........96-101.
* Min Humidity...........14-19 percent.
* 20-Foot Winds..........North winds up to 7 mph.
* Mixing Height..........6800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ149-050000-
Eastern Colusa County-
Including the city of Colusa
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........93-98.
* 24 HR Trend..........Little change.
* Min Humidity...........15-20 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........North winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........2400 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........60-65.
* 24 HR Trend..........Little change.
* Max Humidity...........57-62 percent.
* 24 HR Trend..........6 percent up.
* 20-Foot Winds..........Variable winds less than 5 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......3 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........96-101.
* Min Humidity...........13-18 percent.
* 20-Foot Winds..........North winds up to 6 mph.
* Mixing Height..........5200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ150-050000-
Sutter/Yuba counties below 1000 ft-
Including the city of Yuba City, Beale AFB
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........94-99.
* 24 HR Trend..........Little change.
* Min Humidity...........13-18 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........2500 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then becoming
partly cloudy.
* Min Temperature........61-66.
* 24 HR Trend..........Little change.
* Max Humidity...........47-60 percent.
* 24 HR Trend..........6 percent up.
* 20-Foot Winds..........Variable winds less than 5 mph becoming
northeast up to 5 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......4 percent.
.MONDAY...
* Sky/Weather............Mostly sunny.
* Max Temperature........97-102.
* Min Humidity...........12-17 percent.
* 20-Foot Winds..........Northwest winds up to 6 mph.
* Mixing Height..........5200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ151-050000-
Yolo / Solano County Hills-
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........91-96.
* 24 HR Trend..........Little change.
* Min Humidity...........16-22 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Northeast winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........3700 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........66-75.
* 24 HR Trend..........Little change.
* Max Humidity...........39-54 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Northwest winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......2 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........92-98.
* Min Humidity...........16-31 percent.
* 20-Foot Winds..........
* Ridges/Upr Slopes....Variable winds up to 7 mph becoming
northeast 4 to 7 mph in the afternoon.
* Mixing Height..........9800 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ152-050000-
W. Yolo County including Capay/I-505-
Including the city of Esparto, Winters
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........94-99.
* 24 HR Trend..........Little change.
* Min Humidity...........14-19 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........North winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........3200 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........66-72.
* 24 HR Trend..........Little change.
* Max Humidity...........38-47 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Variable winds less than 5 mph becoming
northwest up to 6 mph after midnight.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......2 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........98-103.
* Min Humidity...........15-20 percent.
* 20-Foot Winds..........North winds up to 7 mph.
* Mixing Height..........8200 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ153-050000-
C. Yolo/NE Solano including Woodland-
Including the city of Woodland, Dixon
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........94-99.
* 24 HR Trend..........Little change.
* Min Humidity...........13-18 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........North winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........2700 ft AGL.
* Chance of thunder......0 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then
clearing.
* Min Temperature........62-67.
* 24 HR Trend..........Little change.
* Max Humidity...........50-58 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Variable winds less than 5 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......2 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........98-103.
* Min Humidity...........13-18 percent.
* 20-Foot Winds..........North winds up to 6 mph.
* Mixing Height..........5600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ154-050000-
Sac Metro/W. El Dorado/Amador County-
Including the city of Lincoln, Roseville, Sacramento, Elk Grove,
Folsom
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........95-100.
* 24 HR Trend..........Little change.
* Min Humidity...........13-18 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........3000 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly cloudy in the evening then
clearing.
* Min Temperature........62-68.
* 24 HR Trend..........Little change.
* Max Humidity...........46-61 percent.
* 24 HR Trend..........6 percent up.
* 20-Foot Winds..........Northeast winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......2 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........98-103.
* Min Humidity...........14-19 percent.
* 20-Foot Winds..........North winds up to 7 mph.
* Mixing Height..........4600 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ155-050000-
C. Solano County including Fairfield-
Including the city of Fairfield, Vacaville
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........96-101.
* 24 HR Trend..........Little change.
* Min Humidity...........15-20 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........North winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........2700 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy in the evening then
clearing.
* Min Temperature........64-69.
* 24 HR Trend..........Little change.
* Max Humidity...........56-65 percent.
* 24 HR Trend..........5 percent up.
* 20-Foot Winds..........West winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......1 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........99-104.
* Min Humidity...........14-27 percent.
* 20-Foot Winds..........Northwest winds up to 6 mph.
* Mixing Height..........4700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ156-050000-
SW Solano County including Vallejo-
Including the city of Vallejo, Benicia
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........93-99.
* 24 HR Trend..........Little change.
* Min Humidity...........17-26 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northeast winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........2300 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy in the evening then
clearing.
* Min Temperature........64-69.
* 24 HR Trend..........Little change.
* Max Humidity...........63-72 percent.
* 24 HR Trend..........7 percent up.
* 20-Foot Winds..........West winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........300 ft AGL.
* Chance of thunder......1 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........93-101.
* Min Humidity...........21-36 percent.
* 20-Foot Winds..........West winds up to 6 mph.
* Mixing Height..........3100 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ157-050000-
Sacramento County Delta-
Including the city of Walnut Grove
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........95-100.
* 24 HR Trend..........Little change.
* Min Humidity...........19-24 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........2700 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........62-67.
* 24 HR Trend..........Little change.
* Max Humidity...........60-65 percent.
* 24 HR Trend..........5 percent up.
* 20-Foot Winds..........West winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......2 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........95-100.
* Min Humidity...........17-27 percent.
* 20-Foot Winds..........Northwest winds up to 6 mph.
* Mixing Height..........4500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ158-050000-
San Joaquin County Delta-
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Partly cloudy in the morning then becoming
mostly cloudy.
* Max Temperature........96-101.
* 24 HR Trend..........Little change.
* Min Humidity...........17-22 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........2800 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........63-68.
* 24 HR Trend..........Little change.
* Max Humidity...........59-66 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........West winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......1 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........97-102.
* Min Humidity...........17-29 percent.
* 20-Foot Winds..........Northwest winds up to 6 mph.
* Mixing Height..........4500 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ159-050000-
C. San Joaquin County including Stockton-
Including the city of Stockton, Lodi
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........96-101.
* 24 HR Trend..........Little change.
* Min Humidity...........14-19 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Variable winds less than 5 mph becoming
west up to 6 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........3200 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........63-68.
* 24 HR Trend..........Little change.
* Max Humidity...........55-64 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........Northwest winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......1 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........97-102.
* Min Humidity...........13-18 percent.
* 20-Foot Winds..........Northwest winds up to 7 mph.
* Mixing Height..........4300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ160-050000-
Tracy Triangle Below 1000 ft-
Including the city of Tracy
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........95-100.
* 24 HR Trend..........Little change.
* Min Humidity...........17-22 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........3000 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........65-74.
* 24 HR Trend..........Little change.
* Max Humidity...........40-55 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........West winds up to 6 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......1 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........96-101.
* Min Humidity...........17-25 percent.
* 20-Foot Winds..........Northwest winds up to 7 mph.
* Mixing Height..........4100 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ161-050000-
NE San Joaquin Valley Below 1000 ft-
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Partly cloudy in the morning then becoming
mostly cloudy. Patchy smoke.
* Max Temperature........97-102.
* 24 HR Trend..........Little change.
* Min Humidity...........13-18 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........East winds up to 7 mph shifting to the
southwest up to 6 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........4800 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Partly cloudy.
* Min Temperature........66-72.
* 24 HR Trend..........Little change.
* Max Humidity...........38-50 percent.
* 24 HR Trend..........4 percent up.
* 20-Foot Winds..........Northeast winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......1 percent.
.MONDAY...
* Sky/Weather............Sunny. Patchy smoke in the morning.
* Max Temperature........97-102.
* Min Humidity...........15-22 percent.
* 20-Foot Winds..........East winds up to 7 mph shifting to the
west in the afternoon.
* Mixing Height..........5700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......1 percent.
$$
CAZ162-050000-
E. Diablo Range Above 1000 ft-
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy in the morning then becoming
partly cloudy.
* Max Temperature........90-96.
* 24 HR Trend..........Little change.
* Min Humidity...........15-20 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* CWR....................0 percent.
* Mixing Height..........5900 ft AGL.
* Chance of thunder......2 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........67-76.
* 24 HR Trend..........Little change.
* Max Humidity...........24-35 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........
* CWR....................0 percent.
* Mixing Height..........500 ft AGL.
* Chance of thunder......2 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........90-96.
* Min Humidity...........17-22 percent.
* 20-Foot Winds..........
* Mixing Height..........7700 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ163-050000-
W. Stanislaus County Above 1000 ft & I-5-
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy in the morning then becoming
partly cloudy.
* Max Temperature........95-100.
* 24 HR Trend..........Little change.
* Min Humidity...........17-22 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........North winds up to 8 mph.
* CWR....................0 percent.
* Mixing Height..........3600 ft AGL.
* Chance of thunder......2 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........66-73.
* 24 HR Trend..........Little change.
* Max Humidity...........37-52 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......2 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........95-100.
* Min Humidity...........17-25 percent.
* 20-Foot Winds..........North winds up to 8 mph.
* Mixing Height..........5300 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
CAZ164-050000-
C. Stanislaus County including Modesto-
Including the city of Modesto, Turlock
202 AM PDT Sun Oct 4 2026
...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT WEDNESDAY...
.TODAY...
* Sky/Weather............Mostly cloudy.
* Max Temperature........96-101.
* 24 HR Trend..........Little change.
* Min Humidity...........16-21 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Variable winds less than 5 mph becoming
west up to 6 mph in the afternoon.
* CWR....................0 percent.
* Mixing Height..........3700 ft AGL.
* Chance of thunder......1 percent.
.TONIGHT...
* Sky/Weather............Mostly clear.
* Min Temperature........64-69.
* 24 HR Trend..........Little change.
* Max Humidity...........54-59 percent.
* 24 HR Trend..........Little change.
* 20-Foot Winds..........Northwest winds up to 7 mph.
* CWR....................0 percent.
* Mixing Height..........400 ft AGL.
* Chance of thunder......1 percent.
.MONDAY...
* Sky/Weather............Sunny.
* Max Temperature........96-101.
* Min Humidity...........15-25 percent.
* 20-Foot Winds..........Northwest winds up to 7 mph.
* Mixing Height..........5000 ft AGL.
* CWR....................0 percent.
* Chance of thunder......0 percent.
$$
.Extended...
...Shasta County Mountains and Coastal Range
.MONDAY NIGHT...Clear. Lows 55 to 65. Northwest winds 5 to
15 mph.
.TUESDAY...Sunny. Highs 83 to 93. North winds 5 to 15 mph.
.TUESDAY NIGHT...Clear. Lows 54 to 64. Northwest winds 5 to
15 mph.
.WEDNESDAY...Sunny. Highs 83 to 93. Variable less than 5 mph.
.WEDNESDAY NIGHT...Clear. Lows 54 to 64. Variable less than
5 mph.
.THURSDAY...Sunny. Highs 82 to 92. Variable less than 5 mph.
.THURSDAY NIGHT...Clear. Lows 54 to 64. Variable less than 5 mph.
...Northern Sierra and Lassen Park
.MONDAY NIGHT...Clear. Lows 53 to 63. Northeast winds 5 to
15 mph.
.TUESDAY...Sunny. Highs 84 to 93. West winds 5 to 15 mph.
.TUESDAY NIGHT...Clear. Lows 53 to 63. Northeast winds 5 to
15 mph.
.WEDNESDAY...Sunny. Highs 84 to 93. West winds up to 10 mph.
.WEDNESDAY NIGHT...Clear. Lows 53 to 63. Northeast winds up to
10 mph.
.THURSDAY...Sunny. Highs 84 to 92. West winds up to 10 mph.
.THURSDAY NIGHT...Clear. Lows 53 to 63. Northeast winds up to
10 mph.
...Sierra Nevada Foothills
.MONDAY NIGHT...Clear. Lows 64 to 71. Northeast winds 5 to
15 mph.
.TUESDAY...Sunny. Highs 92 to 97. West winds 10 to 20 mph.
.TUESDAY NIGHT...Clear. Lows 63 to 70. Northeast winds 5 to
15 mph.
.WEDNESDAY...Sunny. Highs 92 to 97. West winds up to 10 mph.
.WEDNESDAY NIGHT...Clear. Lows 63 to 70. Northeast winds up to
10 mph.
.THURSDAY...Sunny. Highs 91 to 97. West winds up to 10 mph.
.THURSDAY NIGHT...Clear. Lows 63 to 70. Northeast winds up to
10 mph.
...Central Valley and Delta
.MONDAY NIGHT...Clear. Lows 61 to 67. Northwest winds up to
10 mph.
.TUESDAY...Sunny. Highs 98 to 103. Northwest winds 5 to 15 mph.
.TUESDAY NIGHT...Clear. Lows 61 to 67. Northwest winds 5 to
15 mph.
.WEDNESDAY...Sunny. Highs 97 to 102. Northwest winds up to
10 mph.
.WEDNESDAY NIGHT...Clear. Lows 61 to 66. Variable less than
5 mph.
.THURSDAY...Sunny. Highs 96 to 101. Variable less than 5 mph.
.THURSDAY NIGHT...Clear. Lows 61 to 66. Variable less than 5 mph.
$$