219
FNUS56 KSGX 170857
FWFSGX
FIRE WEATHER PLANNING FORECAST FOR EXTREME SOUTHWESTERN CALIFORNIA
NATIONAL WEATHER SERVICE SAN DIEGO CA
157 AM PDT MON AUG 17 2026
DISCUSSION
A SLOW WARMING TREND WILL OCCUR THROUGH THURSDAY WHEN HIGHS WILL
BE NEAR 3 TO 7 DEGREES ABOVE NORMAL, FOLLOWED BY A DEGREE OR TWO
OF COOLING EACH DAY THROUGH NEXT WEEKEND. DRY WEATHER WILL PREVAIL
THROUGH AT LEAST WEDNESDAY. THERE IS A 10-15% CHANCE OF SHOWERS
OVER THE MOUNTAINS ON THURSDAY AFTERNOON, INCREASING TO A 15-20%
CHANCE OF SHOWERS AND THUNDERSTORMS OVER THE MOUNTAINS AND
ADJACENT DESERTS EACH AFTERNOON FRIDAY THROUGH THE WEEKEND.
CAZ552-172300-
ORANGE COUNTY COASTAL AREAS-
INCLUDING THE CITIES OF HUNTINGTON BEACH, COSTA MESA,
NEWPORT BEACH, LAGUNA BEACH, AND SAN CLEMENTE
157 AM PDT MON AUG 17 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY...BECOMING MOSTLY SUNNY.
MAX TEMPERATURE.....75 TO 85.
24 HR TREND......UP 2 DEGREES.
MIN HUMIDITY........50 TO 60 PERCENT.
24 HR TREND......DOWN 5 PERCENT.
WIND (20 FT)........WINDS WEST 6 TO 12 MPH. GUSTS TO 20 MPH IN THE
AFTERNOON.
CWR (>0.10 IN)......1 PERCENT.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. PATCHY FOG AFTER MIDNIGHT.
MIN TEMPERATURE.....65 TO 70.
24 HR TREND......UP 1 DEGREE.
MAX HUMIDITY........85 TO 95 PERCENT.
24 HR TREND......LITTLE CHANGE.
WIND (20 FT)........WINDS WEST 6 TO 10 MPH WITH GUSTS TO 20 MPH IN
THE EVENING BECOMING VARIABLE 2 TO 5 MPH.
CWR (>0.10 IN)......1 PERCENT.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY...BECOMING MOSTLY SUNNY.
MAX TEMPERATURE.....76 TO 86.
24 HR TREND......LITTLE CHANGE.
MIN HUMIDITY........55 TO 65 PERCENT.
24 HR TREND......UP 10 PERCENT.
WIND (20 FT)........WINDS SOUTHWEST 6 TO 8 MPH.
CWR (>0.10 IN)......0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S. LIGHT
WINDS.
WEDNESDAY
PARTLY CLOUDY. HIGHS AROUND 80. LIGHT WINDS.
WEDNESDAY NIGHT
PARTLY CLOUDY. PATCHY FOG AFTER MIDNIGHT. LOWS
IN THE UPPER 60S. LIGHT WINDS.
THURSDAY
PARTLY CLOUDY. PATCHY FOG IN THE MORNING. HIGHS
AROUND 80. LIGHT WINDS.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. LIGHT
WINDS.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S.
SATURDAY
PARTLY CLOUDY. HIGHS IN THE LOWER 80S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S.
SUNDAY
PARTLY CLOUDY. HIGHS AROUND 80.
CAZ554-172300-
ORANGE COUNTY INLAND AREAS-
INCLUDING THE CITIES OF SANTA ANA, ANAHEIM, GARDEN GROVE, IRVINE,
ORANGE, FULLERTON, AND MISSION VIEJO
157 AM PDT MON AUG 17 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY...BECOMING MOSTLY SUNNY.
MAX TEMPERATURE.....83 TO 90.
24 HR TREND......UP 4 DEGREES.
MIN HUMIDITY........40 TO 50 PERCENT.
24 HR TREND......DOWN 10 PERCENT.
WIND (20 FT)........WINDS WEST 6 TO 9 MPH. GUSTS TO 20 MPH IN THE
AFTERNOON.
CWR (>0.10 IN)......1 PERCENT.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. PATCHY FOG AFTER MIDNIGHT.
MIN TEMPERATURE.....63 TO 69.
24 HR TREND......UP 2 DEGREES.
MAX HUMIDITY........80 TO 90 PERCENT.
24 HR TREND......DOWN 5 PERCENT.
WIND (20 FT)........WINDS WEST AROUND 6 MPH IN THE EVENING BECOMING
VARIABLE 2 TO 4 MPH.
CWR (>0.10 IN)......1 PERCENT.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY...BECOMING MOSTLY SUNNY.
MAX TEMPERATURE.....84 TO 91.
24 HR TREND......UP 2 DEGREES.
MIN HUMIDITY........40 TO 50 PERCENT.
24 HR TREND......UP 5 PERCENT.
WIND (20 FT)........WINDS SOUTHWEST 6 TO 8 MPH.
CWR (>0.10 IN)......0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. LIGHT
WINDS.
WEDNESDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 80S. LIGHT WINDS.
WEDNESDAY NIGHT
MOSTLY CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS
IN THE UPPER 60S. LIGHT WINDS.
THURSDAY
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. HIGHS AROUND
90. LIGHT WINDS.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 90. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 90.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S.
CAZ243-172300-
SAN DIEGO COUNTY COASTAL AREAS-
157 AM PDT MON AUG 17 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY...BECOMING MOSTLY SUNNY.
MAX TEMPERATURE.....76 TO 85.
24 HR TREND......UP 5 DEGREES.
MIN HUMIDITY........55 TO 65 PERCENT.
24 HR TREND......DOWN 5 PERCENT.
WIND (20 FT)........WINDS NORTHWEST 6 TO 12 MPH. GUSTS TO 20 MPH IN
THE AFTERNOON.
CWR (>0.10 IN)......1 PERCENT.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY...BECOMING MOSTLY CLOUDY. PATCHY
FOG AFTER MIDNIGHT.
MIN TEMPERATURE.....63 TO 69.
24 HR TREND......UP 1 DEGREE.
MAX HUMIDITY........85 TO 95 PERCENT.
24 HR TREND......LITTLE CHANGE.
WIND (20 FT)........WINDS NORTHWEST 6 TO 9 MPH IN THE EVENING
BECOMING VARIABLE 2 TO 5 MPH.
CWR (>0.10 IN)......1 PERCENT.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY. PATCHY FOG IN THE MORNING.
MAX TEMPERATURE.....76 TO 86.
24 HR TREND......DOWN 1 DEGREE.
MIN HUMIDITY........55 TO 65 PERCENT.
24 HR TREND......UP 5 PERCENT.
WIND (20 FT)........WINDS WEST 10 MPH. GUSTS TO 20 MPH IN THE
AFTERNOON.
CWR (>0.10 IN)......0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED
TUESDAY NIGHT
PARTLY CLOUDY. PATCHY FOG AFTER MIDNIGHT. LOWS
IN THE UPPER 60S. LIGHT WINDS.
WEDNESDAY
PARTLY CLOUDY. PATCHY FOG IN THE MORNING. HIGHS IN
THE LOWER 80S. LIGHT WINDS.
WEDNESDAY NIGHT
PARTLY CLOUDY. PATCHY FOG AFTER MIDNIGHT. LOWS
IN THE UPPER 60S. LIGHT WINDS.
THURSDAY
PARTLY CLOUDY. PATCHY FOG IN THE MORNING. HIGHS IN
THE LOWER 80S. LIGHT WINDS.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. LIGHT
WINDS.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE LOWER 80S. LIGHT WINDS.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S.
SATURDAY
PARTLY CLOUDY. HIGHS IN THE LOWER 80S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S.
SUNDAY
PARTLY CLOUDY. HIGHS IN THE LOWER 80S.
CAZ250-172300-
SAN DIEGO COUNTY INLAND VALLEYS-
157 AM PDT MON AUG 17 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY...BECOMING MOSTLY SUNNY.
MAX TEMPERATURE.....83 TO 88 IN THE WESTERN VALLEYS TO 91 TO 96
NEAR THE FOOTHILLS.
24 HR TREND......UP 3 DEGREES.
MIN HUMIDITY........30 TO 40 PERCENT.
24 HR TREND......DOWN 5 PERCENT.
WIND (20 FT)........WINDS WEST 6 TO 12 MPH. GUSTS TO 20 MPH IN THE
AFTERNOON.
CWR (>0.10 IN)......1 PERCENT.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
MIN TEMPERATURE.....63 TO 70.
24 HR TREND......UP 2 DEGREES.
MAX HUMIDITY........80 TO 90 PERCENT.
24 HR TREND......DOWN 5 PERCENT.
WIND (20 FT)........WINDS NORTHWEST 6 TO 8 MPH IN THE EVENING
BECOMING VARIABLE 2 TO 5 MPH.
CWR (>0.10 IN)......1 PERCENT.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY.
MAX TEMPERATURE.....84 TO 89 IN THE WESTERN VALLEYS TO 92 TO 97
NEAR THE FOOTHILLS.
24 HR TREND......UP 2 DEGREES.
MIN HUMIDITY........25 TO 35 PERCENT.
24 HR TREND......LITTLE CHANGE.
WIND (20 FT)........WINDS WEST 9 MPH. GUSTS TO 20 MPH IN THE
AFTERNOON.
CWR (>0.10 IN)......0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. LIGHT
WINDS.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. LIGHT WINDS.
WEDNESDAY NIGHT
MOSTLY CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS
IN THE UPPER 60S. LIGHT WINDS.
THURSDAY
MOSTLY SUNNY. PATCHY FOG IN THE MORNING. HIGHS IN THE
LOWER 90S. LIGHT WINDS.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S.
SATURDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE UPPER 60S.
SUNDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS IN THE
AFTERNOON. HIGHS IN THE LOWER 90S.
CAZ248-172300-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
157 AM PDT MON AUG 17 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....92 TO 100.
24 HR TREND......UP 3 DEGREES.
MIN HUMIDITY........20 TO 30 PERCENT.
24 HR TREND......DOWN 5 PERCENT.
WIND (20 FT)........WINDS WEST 6 TO 12 MPH. GUSTS TO 20 MPH IN THE
AFTERNOON.
CWR (>0.10 IN)......1 PERCENT.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....64 TO 70.
24 HR TREND......UP 2 DEGREES.
MAX HUMIDITY........60 TO 70 PERCENT.
24 HR TREND......DOWN 10 PERCENT.
WIND (20 FT)........WINDS WEST 6 TO 10 MPH WITH GUSTS TO 20 MPH IN
THE EVENING BECOMING VARIABLE 2 TO 5 MPH.
CWR (>0.10 IN)......1 PERCENT.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY...BECOMING PARTLY CLOUDY.
MAX TEMPERATURE.....94 TO 101.
24 HR TREND......UP 2 DEGREES.
MIN HUMIDITY........20 TO 30 PERCENT.
24 HR TREND......DOWN 5 PERCENT.
WIND (20 FT)........WINDS WEST 6 TO 11 MPH. GUSTS TO 20 MPH IN THE
AFTERNOON.
CWR (>0.10 IN)......0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. LIGHT
WINDS.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 90S. LIGHT WINDS.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 70. LIGHT WINDS.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 90S. LIGHT WINDS.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 70. LIGHT WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 90S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 70.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 90S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 70.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 90S.
CAZ255-256-172300-
SAN BERNARDINO COUNTY MOUNTAINS-
INCLUDING THE MOUNTAIN TOP AND FRONT COUNTRY RANGER DISTRICTS OF
THE SAN BERNARDINO NATIONAL FOREST-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE SAN JACINTO RANGER DISTRICT OF THE SAN BERNARDINO
NATIONAL FOREST-
157 AM PDT MON AUG 17 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY...BECOMING PARTLY CLOUDY.
MAX TEMPERATURE.....76 TO 86 ABOVE 6000 FEET TO 82 TO 92 BELOW 6000
FEET.
24 HR TREND......UP 2 DEGREES.
MIN HUMIDITY........20 TO 25 PERCENT.
24 HR TREND......DOWN 10 PERCENT.
WIND (20 FT)........
SLOPES...........WINDS WEST AROUND 6 MPH...BECOMING 6 TO 14 MPH
IN THE AFTERNOON. GUSTS TO 20 MPH IN THE
AFTERNOON.
RIDGETOP.........WINDS SOUTH 6 TO 10 MPH.
CWR (>0.10 IN)......1 PERCENT.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....50 TO 60 ABOVE 6000 FEET TO 61 TO 71 BELOW 6000
FEET.
24 HR TREND......UP 3 DEGREES.
MAX HUMIDITY........25 TO 35 PERCENT ON DESERT SLOPES TO 40 TO 50
PERCENT ON COASTAL SLOPES.
24 HR TREND......DOWN 5 PERCENT.
WIND (20 FT)........
SLOPES...........WINDS WEST 6 TO 13 MPH...BECOMING 6 TO 9 MPH
AFTER MIDNIGHT. GUSTS TO 20 MPH IN THE EVENING.
RIDGETOP.........WINDS SOUTH 6 TO 13 MPH.
CWR (>0.10 IN)......1 PERCENT.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY...BECOMING PARTLY CLOUDY.
MAX TEMPERATURE.....78 TO 88 ABOVE 6000 FEET TO 84 TO 94 BELOW 6000
FEET.
24 HR TREND......UP 2 DEGREES.
MIN HUMIDITY........20 TO 25 PERCENT.
24 HR TREND......LITTLE CHANGE.
WIND (20 FT)........
SLOPES...........WINDS SOUTH 6 TO 15 MPH WITH GUSTS TO 20 MPH.
RIDGETOP.........WINDS SOUTH 6 TO 15 MPH.
CWR (>0.10 IN)......0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED
TUESDAY NIGHT
WARMER. MOSTLY CLEAR. LOWS IN THE UPPER 60S.
LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. LIGHT WINDS.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. LIGHT
WINDS.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 80S. LIGHT WINDS.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 80S. LIGHT
WINDS.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 60S.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 80S.
SATURDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE UPPER 60S.
SUNDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 80S.
CAZ258-172300-
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE PALOMAR AND DESCANSO RANGER DISTRICTS OF THE
CLEVELAND NATIONAL FOREST-
157 AM PDT MON AUG 17 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....87 TO 97.
24 HR TREND......UP 5 DEGREES.
MIN HUMIDITY........20 TO 25 PERCENT ON DESERT SLOPES TO 25 TO 30
PERCENT ON COASTAL SLOPES.
24 HR TREND......DOWN 10 PERCENT.
WIND (20 FT)........
SLOPES...........WINDS WEST 6 TO 13 MPH. GUSTS TO 20 MPH IN THE
AFTERNOON.
RIDGETOP.........WINDS WEST 6 TO 13 MPH. GUSTS TO 20 MPH IN THE
AFTERNOON.
CWR (>0.10 IN)......1 PERCENT.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....64 TO 74.
24 HR TREND......UP 4 DEGREES.
MAX HUMIDITY........35 TO 45 PERCENT ON DESERT SLOPES TO 40 TO 50
PERCENT ON COASTAL SLOPES.
24 HR TREND......LITTLE CHANGE.
WIND (20 FT)........
SLOPES...........WINDS WEST 6 TO 12 MPH BECOMING EAST 6 TO 10
MPH AFTER MIDNIGHT.
RIDGETOP.........WINDS WEST 6 TO 12 MPH.
CWR (>0.10 IN)......1 PERCENT.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY...BECOMING PARTLY CLOUDY.
MAX TEMPERATURE.....88 TO 98.
24 HR TREND......UP 1 DEGREE.
MIN HUMIDITY........20 TO 25 PERCENT.
24 HR TREND......DOWN 5 PERCENT.
WIND (20 FT)........
SLOPES...........WINDS WEST 6 TO 11 MPH. GUSTS TO 20 MPH IN THE
AFTERNOON.
RIDGETOP.........WINDS WEST 6 TO 11 MPH WITH GUSTS TO 20 MPH.
CWR (>0.10 IN)......1 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. LIGHT
WINDS.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. LIGHT WINDS.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. LIGHT
WINDS.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. LIGHT WINDS.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 90S. LIGHT
WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 90.
SATURDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 70S.
SUNDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 90.
CAZ257-172300-
SANTA ANA MOUNTAINS-
INCLUDING THE TRABUCO RANGER DISTRICT OF THE CLEVELAND NATIONAL
FOREST-
157 AM PDT MON AUG 17 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....87 TO 97.
24 HR TREND......UP 1 DEGREE.
MIN HUMIDITY........25 TO 35 PERCENT.
24 HR TREND......DOWN 5 PERCENT.
WIND (20 FT)........
SLOPES...........WINDS WEST 6 TO 11 MPH.
RIDGETOP.........VARIABLE 2 TO 4 MPH BECOMING WEST AROUND 6 MPH
IN THE AFTERNOON.
CWR (>0.10 IN)......1 PERCENT.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....62 TO 71.
24 HR TREND......UP 2 DEGREES.
MAX HUMIDITY........50 TO 60 PERCENT.
24 HR TREND......DOWN 15 PERCENT.
WIND (20 FT)........
SLOPES...........WINDS WEST 6 TO 9 MPH IN THE EVENING BECOMING
DOWNSLOPE 2 TO 5 MPH.
RIDGETOP.........VARIABLE 1 TO 3 MPH.
CWR (>0.10 IN)......1 PERCENT.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....89 TO 99.
24 HR TREND......UP 2 DEGREES.
MIN HUMIDITY........25 TO 35 PERCENT.
24 HR TREND......DOWN 5 PERCENT.
WIND (20 FT)........
SLOPES...........WINDS WEST 6 TO 9 MPH.
RIDGETOP.........VARIABLE 2 TO 4 MPH BECOMING NORTH AROUND 6 MPH
IN THE AFTERNOON.
CWR (>0.10 IN)......0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 60S. LIGHT
WINDS.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. LIGHT WINDS.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 70. LIGHT WINDS.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. LIGHT WINDS.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 70.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 70.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 90S.
CAZ260-172300-
VICTOR VALLEY-APPLE VALLEY-LUCERNE VALLEY-JOHNSON VALLEY-
157 AM PDT MON AUG 17 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....96 TO 103.
24 HR TREND......UP 2 DEGREES.
MIN HUMIDITY........10 TO 15 PERCENT.
24 HR TREND......DOWN 5 PERCENT.
WIND (20 FT)........WINDS WEST AROUND 6 MPH BECOMING SOUTH 6 TO 16
MPH WITH GUSTS TO 25 MPH IN THE AFTERNOON.
CWR (>0.10 IN)......1 PERCENT.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....67 TO 76.
24 HR TREND......UP 7 DEGREES.
MAX HUMIDITY........30 TO 40 PERCENT.
24 HR TREND......DOWN 5 PERCENT.
WIND (20 FT)........WINDS WEST 6 TO 15 MPH. GUSTS TO 20 MPH IN THE
EVENING.
CWR (>0.10 IN)......1 PERCENT.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....97 TO 105.
24 HR TREND......UP 1 DEGREE.
MIN HUMIDITY........10 TO 15 PERCENT.
24 HR TREND......LITTLE CHANGE.
WIND (20 FT)........WINDS WEST 6 TO 8 MPH BECOMING SOUTH 6 TO 16
MPH WITH GUSTS TO 25 MPH IN THE AFTERNOON.
CWR (>0.10 IN)......0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 70S. SOUTHWEST
WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 101. LIGHT WINDS.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. SOUTHWEST
WINDS AROUND 5 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 102. LIGHT WINDS.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 70S. LIGHT WINDS.
FRIDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS IN THE
AFTERNOON. HIGHS AROUND 100. LIGHT WINDS.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 70S.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 90S.
SATURDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 70S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 90S.
CAZ261-262-265-172300-
COACHELLA VALLEY-
INCLUDING THE PALM SPRINGS SOUTH COAST DESERT DISTRICT-
SAN DIEGO COUNTY DESERTS-
INCLUDING THE ANZA BORREGO DESERT STATE PARK-
SAN GORGONIO PASS NEAR BANNING-
157 AM PDT MON AUG 17 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....106 TO 111.
24 HR TREND......LITTLE CHANGE.
MIN HUMIDITY........15 TO 20 PERCENT.
24 HR TREND......DOWN 5 PERCENT.
WIND (20 FT)........WINDS NORTHWEST 6 TO 14 MPH BECOMING SOUTHEAST
6 TO 16 MPH IN THE AFTERNOON. GUSTS TO 20 MPH.
CWR (>0.10 IN)......1 PERCENT.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....80 TO 89.
24 HR TREND......LITTLE CHANGE.
MAX HUMIDITY........25 TO 35 PERCENT.
24 HR TREND......LITTLE CHANGE.
WIND (20 FT)........WINDS NORTHWEST 7 TO 17 MPH WITH GUSTS TO 25
MPH.
CWR (>0.10 IN)......1 PERCENT.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY...BECOMING PARTLY CLOUDY.
MAX TEMPERATURE.....108 TO 113.
24 HR TREND......UP 2 DEGREES.
MIN HUMIDITY........15 TO 20 PERCENT.
24 HR TREND......DOWN 5 PERCENT.
WIND (20 FT)........WINDS SOUTHEAST 6 TO 14 MPH WITH GUSTS TO 20
MPH.
CWR (>0.10 IN)......0 PERCENT.
FORECAST DAYS 3 THROUGH 7...
SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 80S. WEST WINDS
AROUND 5 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 108. LIGHT WINDS.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 80S. LIGHT
WINDS.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 108. LIGHT WINDS.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 80S. LIGHT
WINDS.
FRIDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 109. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 80S.
SATURDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 108.
SATURDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE MID 80S.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 107.
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