406
FNUS56 KSTO 210903
FWFSTO
FIRE WEATHER PLANNING FORECAST FOR INTERIOR NORTHERN CALIFORNIA
NATIONAL WEATHER SERVICE SACRAMENTO CA
202 AM PDT MON SEP 21 2026
DISCUSSION
COOLER TEMPERATURES WITH BREEZY ONSHORE FLOW ARE EXPECTED AGAIN
TODAY. THERE IS A LOW CHANCES OF SHOWERS AND ISOLATED THUNDERSTORM
(10% OR LESS) THIS AFTERNOON OVER THE SIERRA CREST SOUTH OF
US-50. GRADUAL WARMING AND DRYING CONDITIONS IS FORECAST MID-
WEEK, WITH HIGH PEAKING ON THURSDAY WITH LOWER DAYTIME
HUMIDITIES. POTENTIAL FOR UNSETTLED WEATHER AND ENHANCED GAP FLOW
WINDS IN THE MOUNTAINS FRIDAY INTO THE WEEKEND.
CAZ121-220000-
W. SHASTA COUNTY ABOVE 3000 FT-
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN BECOMING
MOSTLY SUNNY.
* MAX TEMPERATURE........77-85.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........21-26 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* RIDGES/UPR SLOPES....NORTH WINDS UP TO 7 MPH IN THE MORNING
BECOMING VARIABLE UP TO 5 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........8200 FT AGL.
* CHANCE OF THUNDER......3 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........51-57.
* 24 HR TREND..........4 DEGREES COOLER.
* MAX HUMIDITY...........60-75 PERCENT.
* 24 HR TREND..........21 PERCENT UP.
* 20-FOOT WINDS..........
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 5 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......3 PERCENT.
TUESDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........73-81.
* MIN HUMIDITY...........26-41 PERCENT.
* 20-FOOT WINDS..........
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH.
* MIXING HEIGHT..........6900 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ122-220000-
W. SHASTA COUNTY 1000-3000 FT-
INCLUDING THE CITY OF WHISKEYTOWN
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........90-95 LOWER ELEVATIONS...EXCEPT 84-90
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........20-25 PERCENT.
* 24 HR TREND..........4 PERCENT UP.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH BECOMING
SOUTHEAST UP TO 7 MPH IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........6000 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........58-63 LOWER ELEVATIONS...EXCEPT 53-58
HIGHER ELEVATIONS.
* 24 HR TREND..........4 DEGREES COOLER.
* MAX HUMIDITY...........61-76 PERCENT.
* 24 HR TREND..........18 PERCENT UP.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...DRAINAGE WINDS UP TO 5 MPH.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 5 MPH BECOMING
NORTHWEST UP TO 7 MPH AFTER MIDNIGHT.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........87-92 LOWER ELEVATIONS...EXCEPT 81-86
HIGHER ELEVATIONS.
* MIN HUMIDITY...........25-37 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING SOUTHEAST
UP TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTHWEST WINDS UP TO 7 MPH SHIFTING TO THE
SOUTH IN THE AFTERNOON.
* MIXING HEIGHT..........5500 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ123-220000-
SHASTA LAKE AREA & 1-5 1000-3000 FT-
INCLUDING THE CITY OF SHASTA LAKE, SIMS
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN BECOMING
MOSTLY SUNNY.
* MAX TEMPERATURE........85-91.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........19-25 PERCENT.
* 24 HR TREND..........4 PERCENT UP.
* 20-FOOT WINDS..........NORTHEAST WINDS UP TO 7 MPH SHIFTING TO
THE SOUTH UP TO 6 MPH IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........6700 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........53-60.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........64-79 PERCENT.
* 24 HR TREND..........20 PERCENT UP.
* 20-FOOT WINDS..........SOUTH WINDS UP TO 6 MPH SHIFTING TO THE
NORTH AFTER MIDNIGHT.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TUESDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........82-88.
* MIN HUMIDITY...........23-38 PERCENT.
* 20-FOOT WINDS..........NORTH WINDS UP TO 6 MPH SHIFTING TO THE
SOUTH IN THE AFTERNOON.
* MIXING HEIGHT..........5400 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ124-220000-
SHASTA METRO-
INCLUDING THE CITY OF REDDING, ANDERSON
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........90-95.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........21-26 PERCENT.
* 24 HR TREND..........6 PERCENT UP.
* 20-FOOT WINDS..........SOUTHEAST WINDS UP TO 7 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........4600 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........57-62.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........67-79 PERCENT.
* 24 HR TREND..........15 PERCENT UP.
* 20-FOOT WINDS..........SOUTHEAST WINDS UP TO 7 MPH IN THE EVENING
BECOMING VARIABLE LESS THAN 5 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........87-92.
* MIN HUMIDITY...........27-32 PERCENT.
* 20-FOOT WINDS..........SOUTHEAST WINDS UP TO 6 MPH.
* MIXING HEIGHT..........4100 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ125-220000-
SHASTA COUNTY FOOTHILLS 1000-3000 FT-
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............MOSTLY CLOUDY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........85-90.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........23-28 PERCENT.
* 24 HR TREND..........6 PERCENT UP.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING SOUTHWEST
UP TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........4200 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........56-61.
* 24 HR TREND..........4 DEGREES COOLER.
* MAX HUMIDITY...........63-71 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......2 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........82-87.
* MIN HUMIDITY...........29-34 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH.
* MIXING HEIGHT..........3900 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ126-220000-
E. SHASTA /S. CASCADES ABOVE 3000 FT-
INCLUDING THE CITY OF SHINGLETOWN
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............MOSTLY CLOUDY IN THE MORNING THEN BECOMING
MOSTLY SUNNY.
* MAX TEMPERATURE........75-85.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........20-31 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....NORTHEAST WINDS UP TO 7 MPH IN THE MORNING
BECOMING VARIABLE UP TO 5 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........6700 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........45-54.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........65-80 PERCENT.
* 24 HR TREND..........18 PERCENT UP.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...DRAINAGE WINDS UP TO 5 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS UP TO 7 MPH IN THE EVENING
BECOMING VARIABLE UP TO 5 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TUESDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........72-80.
* MIN HUMIDITY...........24-39 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING WEST UP
TO 8 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH BECOMING
SOUTHWEST UP TO 7 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........6100 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ127-220000-
BURNEY BASIN-
INCLUDING THE CITY OF BURNEY
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............MOSTLY CLOUDY IN THE MORNING THEN BECOMING
PARTLY CLOUDY.
* MAX TEMPERATURE........80-86 LOWER ELEVATIONS...EXCEPT 73-82
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........19-25 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........9000 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........44-50.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........65-80 PERCENT.
* 24 HR TREND..........16 PERCENT UP.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...DRAINAGE WINDS UP TO 5 MPH.
* RIDGES/UPR SLOPES....SOUTHWEST WINDS UP TO 7 MPH IN THE EVENING
BECOMING VARIABLE UP TO 5 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TUESDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........78-84 LOWER ELEVATIONS...EXCEPT 70-80
HIGHER ELEVATIONS.
* MIN HUMIDITY...........22-37 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH BECOMING WEST UP
TO 7 MPH WITH LOCAL GUSTS UP TO 20 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........8400 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ128-220000-
LASSEN VOLCANIC NP-
INCLUDING THE CITY OF LASSEN NATIONAL PARK
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............MOSTLY CLOUDY.
* MAX TEMPERATURE........67-74.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........19-29 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........SOUTHEAST WINDS 4 TO 9 MPH SHIFTING TO THE
NORTHWEST UP TO 6 MPH IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........9000 FT AGL.
* CHANCE OF THUNDER......4 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........45-50.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........55-60 PERCENT.
* 24 HR TREND..........14 PERCENT UP.
* 20-FOOT WINDS..........NORTHWEST WINDS UP TO 8 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......3 PERCENT.
TUESDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........64-72.
* MIN HUMIDITY...........26-41 PERCENT.
* 20-FOOT WINDS..........WEST WINDS UP TO 8 MPH.
* MIXING HEIGHT..........8900 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ129-220000-
SIERRA (TEHAMA-PLUMAS) 1000-3000 FT-
INCLUDING THE CITY OF PARADISE
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............MOSTLY CLOUDY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........79-85.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........29-39 PERCENT.
* 24 HR TREND..........7 PERCENT UP.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTHWEST WINDS UP TO 7 MPH SHIFTING TO THE
SOUTHWEST 4 TO 9 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTH WINDS UP TO 7 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3200 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........57-62.
* 24 HR TREND..........5 DEGREES COOLER.
* MAX HUMIDITY...........55-67 PERCENT.
* 24 HR TREND..........14 PERCENT UP.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTHEAST WINDS UP TO 8 MPH IN THE EVENING
BECOMING DRAINAGE UP TO 5 MPH.
* RIDGES/UPR SLOPES....SOUTHEAST 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......2 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........79-84.
* MIN HUMIDITY...........25-40 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING SOUTHWEST
UP TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH.
* MIXING HEIGHT..........3500 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ130-220000-
SIERRA (TEHAMA-PLUMAS) ABOVE 3000 FT-
INCLUDING THE CITY OF MINERAL, QUINCY
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............MOSTLY CLOUDY IN THE MORNING THEN BECOMING
MOSTLY SUNNY.
* MAX TEMPERATURE........76-84 LOWER ELEVATIONS...EXCEPT 71-79
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........18-31 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTHEAST WINDS 4 TO 9 MPH SHIFTING TO THE
SOUTHWEST UP TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....NORTHEAST WINDS UP TO 8 MPH SHIFTING TO THE
WEST IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........6900 FT AGL.
* CHANCE OF THUNDER......3 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........45-55.
* 24 HR TREND..........4 DEGREES COOLER.
* MAX HUMIDITY...........59-74 PERCENT.
* 24 HR TREND..........17 PERCENT UP.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...DRAINAGE WINDS UP TO 5 MPH.
* RIDGES/UPR SLOPES....NORTHWEST WINDS UP TO 7 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........400 FT AGL.
* CHANCE OF THUNDER......3 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........74-82 LOWER ELEVATIONS...EXCEPT 69-77
HIGHER ELEVATIONS.
* MIN HUMIDITY...........25-40 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTHEAST WINDS UP TO 7 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH BECOMING
SOUTHWEST 4 TO 9 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........7200 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ131-220000-
N. MOTHERLODE 1000-3000 FT-
INCLUDING THE CITY OF AUBURN, GRASS VALLEY, COLFAX, NEVADA CITY
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........78-83.
* 24 HR TREND..........4 DEGREES COOLER.
* MIN HUMIDITY...........36-41 PERCENT.
* 24 HR TREND..........8 PERCENT UP.
* 20-FOOT WINDS..........SOUTHWEST WINDS UP TO 7 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3000 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........54-59.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........69-80 PERCENT.
* 24 HR TREND..........17 PERCENT UP.
* 20-FOOT WINDS..........EAST WINDS UP TO 6 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........400 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........79-84.
* MIN HUMIDITY...........31-43 PERCENT.
* 20-FOOT WINDS..........EAST WINDS UP TO 5 MPH SHIFTING TO THE
SOUTHWEST UP TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........3300 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ132-220000-
SIERRA (YUBA-PLACER) 3000-5000 FT-
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............MOSTLY SUNNY IN THE MORNING THEN BECOMING
PARTLY CLOUDY.
* MAX TEMPERATURE........74-82.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........26-37 PERCENT.
* 24 HR TREND..........6 PERCENT UP.
* 20-FOOT WINDS..........NORTHEAST WINDS UP TO 7 MPH SHIFTING TO
THE SOUTHWEST IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3500 FT AGL.
* CHANCE OF THUNDER......3 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........49-57.
* 24 HR TREND..........4 DEGREES COOLER.
* MAX HUMIDITY...........61-76 PERCENT.
* 24 HR TREND..........20 PERCENT UP.
* 20-FOOT WINDS..........EAST WINDS UP TO 6 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........400 FT AGL.
* CHANCE OF THUNDER......3 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........74-80.
* MIN HUMIDITY...........27-42 PERCENT.
* 20-FOOT WINDS..........EAST WINDS UP TO 6 MPH SHIFTING TO THE
WEST UP TO 8 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........4800 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ133-220000-
SIERRA (SIERRA-PLACER) ABOVE 5000 FT-
INCLUDING THE CITY OF BLUE CANYON, KINGVALE, DONNER PEAK
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY.
* MAX TEMPERATURE........68-77.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........24-30 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........EAST WINDS 4 TO 9 MPH SHIFTING TO THE WEST
UP TO 7 MPH IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........7800 FT AGL.
* CHANCE OF THUNDER......5 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........43-53.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........63-76 PERCENT.
* 24 HR TREND..........24 PERCENT UP.
* 20-FOOT WINDS..........NORTH WINDS UP TO 7 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........400 FT AGL.
* CHANCE OF THUNDER......4 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........67-75.
* MIN HUMIDITY...........27-42 PERCENT.
* 20-FOOT WINDS..........EAST WINDS UP TO 7 MPH SHIFTING TO THE
WEST UP TO 8 MPH WITH LOCAL GUSTS UP TO 20 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........7800 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ134-220000-
CENTRAL MOTHERLODE 1000-3000 FT-
INCLUDING THE CITY OF CAMERON PARK, SHINGLE SPRINGS, PLACERVILLE,
COOL, JACKSON
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY.
* MAX TEMPERATURE........77-82.
* 24 HR TREND..........4 DEGREES COOLER.
* MIN HUMIDITY...........36-41 PERCENT.
* 24 HR TREND..........7 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..........3000 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........54-59.
* 24 HR TREND..........4 DEGREES COOLER.
* MAX HUMIDITY...........66-79 PERCENT.
* 24 HR TREND..........12 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......2 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........78-83.
* MIN HUMIDITY...........31-42 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH.
* MIXING HEIGHT..........3200 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ135-220000-
SIERRA 3000-5000 FT-
INCLUDING THE CITY OF POLLOCK PINES
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN BECOMING
MOSTLY CLOUDY. HAZY IN THE MORNING.
* MAX TEMPERATURE........74-79.
* 24 HR TREND..........4 DEGREES COOLER.
* MIN HUMIDITY...........29-39 PERCENT.
* 24 HR TREND..........8 PERCENT UP.
* 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..........3300 FT AGL.
* CHANCE OF THUNDER......3 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........51-57 LOWER ELEVATIONS...EXCEPT 56-61
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........61-75 PERCENT.
* 24 HR TREND..........19 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......3 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........75-80.
* MIN HUMIDITY...........25-40 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING WEST UP
TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH.
* MIXING HEIGHT..........4000 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ136-220000-
SIERRA (EL DORADO-AMADOR) ABOVE 5000 FT-
INCLUDING THE CITY OF CARSON PASS
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN BECOMING
MOSTLY CLOUDY. HAZY IN THE MORNING. AT HIGHER ELEVATIONS, A
SLIGHT CHANCE OF RAIN IN THE AFTERNOON.
* MAX TEMPERATURE........64-74.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........23-31 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* RIDGES/UPR SLOPES....EAST WINDS 4 TO 9 MPH SHIFTING TO THE WEST
UP TO 8 MPH IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........7500 FT AGL.
* CHANCE OF THUNDER......7 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........43-49.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........65-74 PERCENT.
* 24 HR TREND..........24 PERCENT UP.
* 20-FOOT WINDS..........
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 5 MPH BECOMING
NORTHEAST UP TO 7 MPH AFTER MIDNIGHT.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......4 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........64-74.
* MIN HUMIDITY...........28-43 PERCENT.
* 20-FOOT WINDS..........
* RIDGES/UPR SLOPES....NORTHEAST WINDS UP TO 7 MPH SHIFTING TO THE
WEST UP TO 8 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........7900 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ137-220000-
SOUTHERN MOTHERLODE 1000-3000 FT-
INCLUDING THE CITY OF SONORA, ANGELS CAMP
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN BECOMING
MOSTLY CLOUDY. HAZY IN THE MORNING.
* MAX TEMPERATURE........77-82.
* 24 HR TREND..........5 DEGREES COOLER.
* MIN HUMIDITY...........33-39 PERCENT.
* 24 HR TREND..........7 PERCENT UP.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...WEST WINDS UP TO 8 MPH.
* RIDGES/UPR SLOPES....WEST WINDS UP TO 7 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3200 FT AGL.
* CHANCE OF THUNDER......1 PERCENT.
TONIGHT
* SKY/WEATHER............PARTLY CLOUDY IN THE EVENING THEN
CLEARING.
* MIN TEMPERATURE........54-59.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........63-75 PERCENT.
* 24 HR TREND..........12 PERCENT UP.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...NORTH WINDS UP TO 8 MPH.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 5 MPH BECOMING
NORTHEAST UP TO 7 MPH AFTER MIDNIGHT.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........400 FT AGL.
* CHANCE OF THUNDER......1 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........79-84.
* MIN HUMIDITY...........27-42 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING WEST UP
TO 7 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH BECOMING WEST UP
TO 7 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........4000 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ138-220000-
SIERRA (CAL-TUO) 3000-5000 FT-
INCLUDING THE CITY OF TWAIN HARTE, ARNOLD
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN BECOMING
MOSTLY CLOUDY. HAZY AND PATCHY SMOKE IN THE MORNING.
* MAX TEMPERATURE........72-78.
* 24 HR TREND..........5 DEGREES COOLER.
* MIN HUMIDITY...........31-39 PERCENT.
* 24 HR TREND..........8 PERCENT UP.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...SOUTHEAST WINDS UP TO 7 MPH SHIFTING TO THE
SOUTHWEST IN THE AFTERNOON.
* RIDGES/UPR SLOPES....SOUTHEAST WINDS UP TO 7 MPH SHIFTING TO THE
WEST IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3500 FT AGL.
* CHANCE OF THUNDER......4 PERCENT.
TONIGHT
* SKY/WEATHER............PARTLY CLOUDY IN THE EVENING THEN
CLEARING.
* MIN TEMPERATURE........52-59.
* 24 HR TREND..........4 DEGREES COOLER.
* MAX HUMIDITY...........56-71 PERCENT.
* 24 HR TREND..........19 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......3 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........73-79.
* MIN HUMIDITY...........30-45 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING WEST UP
TO 8 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....EAST WINDS UP TO 7 MPH SHIFTING TO THE WEST
UP TO 8 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........4300 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ139-220000-
SIERRA (CAL-TUO) ABOVE 5000 FT-
INCLUDING THE CITY OF TWAIN HARTE, ARNOLD
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN BECOMING
MOSTLY CLOUDY. HAZY IN THE MORNING. AT HIGHER ELEVATIONS, A
CHANCE OF RAIN IN THE AFTERNOON.
* MAX TEMPERATURE........62-72.
* 24 HR TREND..........4 DEGREES COOLER.
* MIN HUMIDITY...........23-31 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* RIDGES/UPR SLOPES....EAST WINDS 4 TO 10 MPH SHIFTING TO THE WEST
UP TO 7 MPH IN THE AFTERNOON.
* CWR....................10 PERCENT.
* MIXING HEIGHT..........7000 FT AGL.
* CHANCE OF THUNDER......9 PERCENT.
TONIGHT
* SKY/WEATHER............PARTLY CLOUDY. PATCHY SMOKE IN THE
EVENING.
* MIN TEMPERATURE........41-51.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........63-78 PERCENT.
* 24 HR TREND..........24 PERCENT UP.
* 20-FOOT WINDS..........
* RIDGES/UPR SLOPES....NORTHEAST WINDS UP TO 7 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......5 PERCENT.
TUESDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........63-73.
* MIN HUMIDITY...........26-41 PERCENT.
* 20-FOOT WINDS..........
* RIDGES/UPR SLOPES....NORTHEAST WINDS UP TO 7 MPH SHIFTING TO THE
WEST UP TO 8 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........8000 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ140-220000-
TEHAMA CO COAST RANGE ABOVE 3000 FT-
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........72-81.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........22-29 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........EAST WINDS UP TO 7 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........7000 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........54-59.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........47-55 PERCENT.
* 24 HR TREND..........13 PERCENT UP.
* 20-FOOT WINDS..........NORTHWEST WINDS UP TO 7 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TUESDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........70-78.
* MIN HUMIDITY...........28-43 PERCENT.
* 20-FOOT WINDS..........NORTHWEST WINDS UP TO 6 MPH SHIFTING TO
THE EAST UP TO 8 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........6300 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ141-220000-
W TEHAMA CO FOOTHILLS 1000-3000 FT-
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........88-93 LOWER ELEVATIONS...EXCEPT 78-84
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........21-26 PERCENT.
* 24 HR TREND..........4 PERCENT UP.
* 20-FOOT WINDS..........NORTH WINDS UP TO 5 MPH SHIFTING TO THE
SOUTHEAST UP TO 8 MPH IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........4700 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........60-65.
* 24 HR TREND..........4 DEGREES COOLER.
* MAX HUMIDITY...........54-61 PERCENT.
* 24 HR TREND..........16 PERCENT UP.
* 20-FOOT WINDS..........WEST WINDS UP TO 7 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........86-91 LOWER ELEVATIONS...EXCEPT 78-83
HIGHER ELEVATIONS.
* MIN HUMIDITY...........27-42 PERCENT.
* 20-FOOT WINDS..........NORTHWEST WINDS UP TO 5 MPH SHIFTING TO
THE EAST UP TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........4000 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ142-220000-
N. SAC VALLEY IN TEHAMA COUNTY-
INCLUDING THE CITY OF RED BLUFF
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........87-92.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........26-33 PERCENT.
* 24 HR TREND..........6 PERCENT UP.
* 20-FOOT WINDS..........SOUTHEAST WINDS UP TO 8 MPH. LOCAL GUSTS
UP TO 20 MPH IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3600 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........57-62.
* 24 HR TREND..........4 DEGREES COOLER.
* MAX HUMIDITY...........70-85 PERCENT.
* 24 HR TREND..........16 PERCENT UP.
* 20-FOOT WINDS..........SOUTH WINDS 4 TO 9 MPH WITH LOCAL GUSTS UP
TO 20 MPH IN THE EVENING BECOMING VARIABLE LESS THAN 5 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........86-91.
* MIN HUMIDITY...........28-43 PERCENT.
* 20-FOOT WINDS..........VARIABLE WINDS LESS THAN 5 MPH BECOMING
SOUTH UP TO 8 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........3600 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ143-220000-
GLENN/COLUSA COAST RANGE ABOVE 3000 FT-
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........72-81.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........22-30 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........NORTHEAST WINDS UP TO 6 MPH SHIFTING TO
THE SOUTHEAST UP TO 8 MPH IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........6200 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........54-60.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........48-59 PERCENT.
* 24 HR TREND..........12 PERCENT UP.
* 20-FOOT WINDS..........NORTHWEST WINDS UP TO 7 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........70-78.
* MIN HUMIDITY...........32-47 PERCENT.
* 20-FOOT WINDS..........NORTH WINDS UP TO 6 MPH SHIFTING TO THE
SOUTHEAST UP TO 7 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........5900 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ144-220000-
CENTRAL GLENN CO & INTERSTATE 5-
INCLUDING THE CITY OF WILLOWS, ORLAND
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........86-91.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........31-41 PERCENT.
* 24 HR TREND..........5 PERCENT UP.
* 20-FOOT WINDS..........EAST WINDS UP TO 8 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3100 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........55-60.
* 24 HR TREND..........4 DEGREES COOLER.
* MAX HUMIDITY...........82-97 PERCENT.
* 24 HR TREND..........19 PERCENT UP.
* 20-FOOT WINDS..........SOUTHEAST WINDS UP TO 7 MPH SHIFTING TO
THE NORTHEAST UP TO 5 MPH AFTER MIDNIGHT.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........400 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........85-90.
* MIN HUMIDITY...........35-50 PERCENT.
* 20-FOOT WINDS..........EAST WINDS UP TO 7 MPH.
* MIXING HEIGHT..........3200 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ145-220000-
EASTERN GLENN COUNTY-
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........85-90.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........40-45 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........SOUTHEAST WINDS UP TO 8 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3000 FT AGL.
* CHANCE OF THUNDER......1 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........55-60.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........95-100 PERCENT.
* 24 HR TREND..........12 PERCENT UP.
* 20-FOOT WINDS..........SOUTHEAST WINDS UP TO 8 MPH IN THE EVENING
BECOMING VARIABLE LESS THAN 5 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........400 FT AGL.
* CHANCE OF THUNDER......1 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........84-89.
* MIN HUMIDITY...........41-49 PERCENT.
* 20-FOOT WINDS..........VARIABLE WINDS LESS THAN 5 MPH BECOMING
SOUTH UP TO 6 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........3100 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ146-220000-
BUTTE COUNTY BELOW 1000 FT-
INCLUDING THE CITY OF CHICO, OROVILLE, GRIDLEY
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........84-89.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........36-43 PERCENT.
* 24 HR TREND..........5 PERCENT UP.
* 20-FOOT WINDS..........SOUTH WINDS 4 TO 9 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3100 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........55-60.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........79-94 PERCENT.
* 24 HR TREND..........11 PERCENT UP.
* 20-FOOT WINDS..........SOUTHEAST WINDS UP TO 8 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........400 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........84-89.
* MIN HUMIDITY...........34-49 PERCENT.
* 20-FOOT WINDS..........VARIABLE WINDS LESS THAN 5 MPH BECOMING
SOUTH UP TO 7 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........3100 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ147-220000-
W. GLENN/COLUSA FOOTHILLS 1000-3000 FT-
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........86-91 LOWER ELEVATIONS...EXCEPT 80-85
HIGHER ELEVATIONS.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........25-32 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING SOUTHEAST
5 TO 8 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH BECOMING
SOUTHEAST UP TO 8 MPH IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........4700 FT AGL.
* CHANCE OF THUNDER......2 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........55-61.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........62-77 PERCENT.
* 24 HR TREND..........15 PERCENT UP.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...DRAINAGE WINDS UP TO 5 MPH.
* RIDGES/UPR SLOPES....WEST 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......2 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........84-89 LOWER ELEVATIONS...EXCEPT 77-82
HIGHER ELEVATIONS.
* MIN HUMIDITY...........29-44 PERCENT.
* 20-FOOT WINDS..........
* VALLEYS/LWR SLOPES...UPSLOPE WINDS UP TO 5 MPH BECOMING EAST 5 TO
8 MPH IN THE AFTERNOON.
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH BECOMING
SOUTHEAST UP TO 8 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........4200 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ148-220000-
CENTRAL COLUSA COUNTY INCL. I-5-
INCLUDING THE CITY OF WILLIAMS
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........86-91.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........35-43 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........EAST WINDS UP TO 8 MPH. LOCAL GUSTS UP TO
20 MPH IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3600 FT AGL.
* CHANCE OF THUNDER......1 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........55-60.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........86-100 PERCENT.
* 24 HR TREND..........13 PERCENT UP.
* 20-FOOT WINDS..........SOUTH WINDS UP TO 7 MPH SHIFTING TO THE
NORTHEAST UP TO 6 MPH AFTER MIDNIGHT.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........400 FT AGL.
* CHANCE OF THUNDER......1 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........85-90.
* MIN HUMIDITY...........36-51 PERCENT.
* 20-FOOT WINDS..........NORTH WINDS UP TO 6 MPH SHIFTING TO THE
EAST 4 TO 9 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........3300 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ149-220000-
EASTERN COLUSA COUNTY-
INCLUDING THE CITY OF COLUSA
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........86-91.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........39-44 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........SOUTHEAST WINDS UP TO 8 MPH. LOCAL GUSTS
UP TO 20 MPH IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3100 FT AGL.
* CHANCE OF THUNDER......1 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........54-59.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........95-100 PERCENT.
* 24 HR TREND..........4 PERCENT UP.
* 20-FOOT WINDS..........SOUTHEAST WINDS UP TO 7 MPH. LOCAL GUSTS
UP TO 20 MPH IN THE EVENING.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........400 FT AGL.
* CHANCE OF THUNDER......1 PERCENT.
TUESDAY
* SKY/WEATHER............MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY
LATE IN THE MORNING THEN BECOMING SUNNY.
* MAX TEMPERATURE........84-89.
* MIN HUMIDITY...........39-48 PERCENT.
* 20-FOOT WINDS..........VARIABLE WINDS LESS THAN 5 MPH BECOMING
SOUTHEAST UP TO 5 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........3000 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ150-220000-
SUTTER/YUBA COUNTIES BELOW 1000 FT-
INCLUDING THE CITY OF YUBA CITY, BEALE AFB
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........83-88.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........37-42 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........SOUTH WINDS 4 TO 9 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3200 FT AGL.
* CHANCE OF THUNDER......1 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........54-59.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........84-99 PERCENT.
* 24 HR TREND..........5 PERCENT UP.
* 20-FOOT WINDS..........SOUTHEAST WINDS UP TO 8 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........400 FT AGL.
* CHANCE OF THUNDER......1 PERCENT.
TUESDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........83-88.
* MIN HUMIDITY...........35-45 PERCENT.
* 20-FOOT WINDS..........SOUTH WINDS UP TO 6 MPH.
* MIXING HEIGHT..........2900 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ151-220000-
YOLO / SOLANO COUNTY HILLS-
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........73-83.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........37-52 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH BECOMING SOUTH 5
TO 8 MPH WITH LOCAL GUSTS UP TO 20 MPH IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3500 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........55-60.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........76-91 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* RIDGES/UPR SLOPES....WEST WINDS 4 TO 9 MPH IN THE EVENING
BECOMING VARIABLE UP TO 5 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........400 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........77-85.
* MIN HUMIDITY...........39-54 PERCENT.
* 20-FOOT WINDS..........
* RIDGES/UPR SLOPES....VARIABLE WINDS UP TO 7 MPH BECOMING
SOUTHEAST 5 TO 8 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........3600 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ152-220000-
W. YOLO COUNTY INCLUDING CAPAY/I-505-
INCLUDING THE CITY OF ESPARTO, WINTERS
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........84-89.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........35-41 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........NORTH WINDS UP TO 7 MPH SHIFTING TO THE
SOUTH 5 TO 11 MPH WITH LOCAL GUSTS UP TO 20 MPH IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3900 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........54-59.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........81-96 PERCENT.
* 24 HR TREND..........4 PERCENT UP.
* 20-FOOT WINDS..........SOUTHWEST WINDS UP TO 8 MPH. LOCAL GUSTS
UP TO 20 MPH IN THE EVENING.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........400 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TUESDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........85-90.
* MIN HUMIDITY...........32-42 PERCENT.
* 20-FOOT WINDS..........NORTH WINDS UP TO 6 MPH SHIFTING TO THE
SOUTHEAST UP TO 7 MPH IN THE AFTERNOON.
* MIXING HEIGHT..........3500 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ153-220000-
C. YOLO/NE SOLANO INCLUDING WOODLAND-
INCLUDING THE CITY OF WOODLAND, DIXON
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........80-85.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........37-46 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........SOUTH WINDS 5 TO 11 MPH WITH LOCAL GUSTS
UP TO 25 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........2800 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........54-59.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........94-100 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........SOUTH WINDS 4 TO 10 MPH WITH LOCAL GUSTS
UP TO 25 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........400 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TUESDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........84-89.
* MIN HUMIDITY...........32-46 PERCENT.
* 20-FOOT WINDS..........SOUTH WINDS UP TO 6 MPH.
* MIXING HEIGHT..........3100 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ154-220000-
SAC METRO/W. EL DORADO/AMADOR COUNTY-
INCLUDING THE CITY OF LINCOLN, ROSEVILLE, SACRAMENTO, ELK GROVE,
FOLSOM
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........81-86.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........39-46 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........SOUTH WINDS 5 TO 11 MPH. LOCAL GUSTS UP TO
20 MPH IN THE AFTERNOON.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3100 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........53-58.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........86-99 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........SOUTH WINDS 4 TO 9 MPH. LOCAL GUSTS UP TO
20 MPH IN THE EVENING.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TUESDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........83-88.
* MIN HUMIDITY...........31-44 PERCENT.
* 20-FOOT WINDS..........SOUTHWEST WINDS UP TO 6 MPH.
* MIXING HEIGHT..........2900 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ155-220000-
C. SOLANO COUNTY INCLUDING FAIRFIELD-
INCLUDING THE CITY OF FAIRFIELD, VACAVILLE
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........76-81.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........49-54 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........SOUTHWEST WINDS 10 TO 16 MPH WITH LOCAL
GUSTS UP TO 30 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........1900 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........55-60.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........89-95 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........SOUTHWEST WINDS 8 TO 14 MPH WITH LOCAL
GUSTS UP TO 25 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........600 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TUESDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........81-86.
* MIN HUMIDITY...........38-53 PERCENT.
* 20-FOOT WINDS..........SOUTHWEST WINDS UP TO 8 MPH. LOCAL GUSTS
UP TO 20 MPH IN THE MORNING.
* MIXING HEIGHT..........2500 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ156-220000-
SW SOLANO COUNTY INCLUDING VALLEJO-
INCLUDING THE CITY OF VALLEJO, BENICIA
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........69-76.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........56-71 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........SOUTHWEST WINDS 11 TO 18 MPH WITH LOCAL
GUSTS UP TO 25 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........1700 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TONIGHT
* SKY/WEATHER............PARTLY CLOUDY.
* MIN TEMPERATURE........56-61.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........91-97 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........SOUTHWEST WINDS 10 TO 16 MPH WITH LOCAL
GUSTS UP TO 25 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........700 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TUESDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........76-82.
* MIN HUMIDITY...........58-73 PERCENT.
* 20-FOOT WINDS..........SOUTHWEST WINDS 6 TO 12 MPH.
* MIXING HEIGHT..........2000 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ157-220000-
SACRAMENTO COUNTY DELTA-
INCLUDING THE CITY OF WALNUT GROVE
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........78-83.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........49-54 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........WEST WINDS 9 TO 15 MPH WITH LOCAL GUSTS UP
TO 25 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........2400 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TONIGHT
* SKY/WEATHER............CLEAR.
* MIN TEMPERATURE........53-58.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........93-98 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........SOUTHWEST WINDS 6 TO 12 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........600 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TUESDAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........80-85.
* MIN HUMIDITY...........40-55 PERCENT.
* 20-FOOT WINDS..........WEST WINDS 4 TO 9 MPH.
* MIXING HEIGHT..........2900 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ158-220000-
SAN JOAQUIN COUNTY DELTA-
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............MOSTLY SUNNY.
* MAX TEMPERATURE........81-86.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........41-48 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........WEST WINDS 5 TO 11 MPH WITH LOCAL GUSTS UP
TO 20 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........2900 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TONIGHT
* SKY/WEATHER............CLEAR.
* MIN TEMPERATURE........53-58.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........91-96 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........SOUTHWEST WINDS UP TO 8 MPH. LOCAL GUSTS
UP TO 20 MPH IN THE EVENING.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........82-87.
* MIN HUMIDITY...........39-54 PERCENT.
* 20-FOOT WINDS..........WEST WINDS UP TO 7 MPH.
* MIXING HEIGHT..........3000 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ159-220000-
C. SAN JOAQUIN COUNTY INCLUDING STOCKTON-
INCLUDING THE CITY OF STOCKTON, LODI
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........82-87.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........37-42 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........NORTHWEST WINDS 4 TO 9 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3300 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........53-58.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........89-97 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........NORTH WINDS UP TO 8 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........600 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........84-89.
* MIN HUMIDITY...........37-45 PERCENT.
* 20-FOOT WINDS..........NORTHWEST WINDS UP TO 6 MPH.
* MIXING HEIGHT..........3200 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ160-220000-
TRACY TRIANGLE BELOW 1000 FT-
INCLUDING THE CITY OF TRACY
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........81-86.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........36-41 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........WEST WINDS 6 TO 12 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........2800 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TONIGHT
* SKY/WEATHER............CLEAR.
* MIN TEMPERATURE........54-59.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........79-94 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........WEST WINDS 4 TO 10 MPH. LOCAL GUSTS UP TO
25 MPH IN THE EVENING.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........400 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........84-89.
* MIN HUMIDITY...........32-42 PERCENT.
* 20-FOOT WINDS..........NORTHWEST WINDS UP TO 7 MPH.
* MIXING HEIGHT..........3000 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ161-220000-
NE SAN JOAQUIN VALLEY BELOW 1000 FT-
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY.
* MAX TEMPERATURE........81-86.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........34-39 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........NORTHWEST WINDS 4 TO 9 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3200 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........55-60.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........71-83 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........NORTHWEST WINDS UP TO 7 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........600 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........83-88.
* MIN HUMIDITY...........31-42 PERCENT.
* 20-FOOT WINDS..........NORTHWEST WINDS UP TO 7 MPH.
* MIXING HEIGHT..........3500 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ162-220000-
E. DIABLO RANGE ABOVE 1000 FT-
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........74-79.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........34-41 PERCENT.
* 24 HR TREND..........4 PERCENT UP.
* 20-FOOT WINDS..........
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3100 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........51-58.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........66-81 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........
* CWR....................0 PERCENT.
* MIXING HEIGHT..........400 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........78-84.
* MIN HUMIDITY...........31-46 PERCENT.
* 20-FOOT WINDS..........
* MIXING HEIGHT..........3500 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ163-220000-
W. STANISLAUS COUNTY ABOVE 1000 FT & I-5-
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY IN THE MORNING THEN
CLEARING.
* MAX TEMPERATURE........81-86.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........34-39 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........NORTH WINDS 6 TO 12 MPH. LOCAL GUSTS UP TO
20 MPH IN THE MORNING.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3300 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........55-60.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........82-97 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........WEST WINDS 5 TO 11 MPH. LOCAL GUSTS UP TO
20 MPH IN THE EVENING.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........400 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........84-89.
* MIN HUMIDITY...........31-42 PERCENT.
* 20-FOOT WINDS..........WEST WINDS UP TO 8 MPH SHIFTING TO THE
NORTH IN THE AFTERNOON.
* MIXING HEIGHT..........3300 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
CAZ164-220000-
C. STANISLAUS COUNTY INCLUDING MODESTO-
INCLUDING THE CITY OF MODESTO, TURLOCK
202 AM PDT MON SEP 21 2026
TODAY
* SKY/WEATHER............PARTLY CLOUDY.
* MAX TEMPERATURE........82-87.
* 24 HR TREND..........LITTLE CHANGE.
* MIN HUMIDITY...........34-39 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........NORTHWEST WINDS UP TO 8 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........3400 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TONIGHT
* SKY/WEATHER............MOSTLY CLEAR.
* MIN TEMPERATURE........54-59.
* 24 HR TREND..........LITTLE CHANGE.
* MAX HUMIDITY...........87-100 PERCENT.
* 24 HR TREND..........LITTLE CHANGE.
* 20-FOOT WINDS..........NORTHWEST WINDS UP TO 7 MPH.
* CWR....................0 PERCENT.
* MIXING HEIGHT..........500 FT AGL.
* CHANCE OF THUNDER......0 PERCENT.
TUESDAY
* SKY/WEATHER............SUNNY.
* MAX TEMPERATURE........84-89.
* MIN HUMIDITY...........32-43 PERCENT.
* 20-FOOT WINDS..........NORTHWEST WINDS UP TO 7 MPH.
* MIXING HEIGHT..........3500 FT AGL.
* CWR....................0 PERCENT.
* CHANCE OF THUNDER......0 PERCENT.
EXTENDED
...SHASTA COUNTY MOUNTAINS AND COASTAL RANGE
TUESDAY NIGHT
CLEAR. LOWS 47 TO 57. NORTHWEST WINDS 5 TO
15 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS 75 TO 85. NORTHEAST WINDS 5 TO
15 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 49 TO 59. NORTHWEST WINDS
UP TO 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS 73 TO 82. SOUTH WINDS UP TO
10 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 47 TO 57. WEST WINDS UP TO
10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS 66 TO 75. SOUTHWEST WINDS UP TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 43 TO 53. VARIABLE LESS THAN
5 MPH.
...NORTHERN SIERRA AND LASSEN PARK
TUESDAY NIGHT
CLEAR. LOWS 48 TO 58. NORTHEAST WINDS UP TO
10 MPH.
WEDNESDAY
SUNNY. HIGHS 77 TO 86. SOUTHWEST WINDS 5 TO 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 49 TO 59. EAST WINDS 5 TO
15 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS 76 TO 86. SOUTH WINDS UP TO
10 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 48 TO 58. VARIABLE LESS
THAN 5 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS 69 TO 79. SOUTH WINDS UP TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 45 TO 55. VARIABLE LESS THAN
5 MPH.
...SIERRA NEVADA FOOTHILLS
TUESDAY NIGHT
CLEAR. LOWS 56 TO 61. NORTHEAST WINDS UP TO
10 MPH.
WEDNESDAY
SUNNY. HIGHS 84 TO 89. WEST WINDS 5 TO 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 58 TO 64. EAST WINDS UP TO
10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS 85 TO 92. SOUTH WINDS 5 TO
10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 58 TO 64. EAST WINDS UP TO
10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS 77 TO 84. SOUTHWEST WINDS 5 TO
10 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 55 TO 60. VARIABLE LESS THAN
5 MPH.
...CENTRAL VALLEY AND DELTA
TUESDAY NIGHT
CLEAR. LOWS 56 TO 61. SOUTHWEST WINDS UP TO
10 MPH.
WEDNESDAY
SUNNY. HIGHS 89 TO 94. NORTHWEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 58 TO 63. WEST WINDS UP TO
10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS 90 TO 95. SOUTHWEST WINDS UP TO
10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 58 TO 63. SOUTHWEST WINDS UP
TO 10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS 84 TO 89. WEST WINDS UP TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 56 TO 61. VARIABLE LESS THAN
5 MPH.
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