SPRING VALLEY, CA 91978 Weather Forecast & Current Conditions
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  91978 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

SAN DIEGO/BROWN, CA
Current Weather
10:53 AM PDT AUG 24, 2025
Clear
82°F
Feels Like: 85°F
Dewpoint: 68°F
Rel. Hum.: 63%
Visibility: 10 miles
Wind: WNW at 7 mph
Pressure: 29.92 inches
Last 72 hours

Local Area Snow Depth

California Current Weather

California MOS Forecast Weather


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(Automated weather data from NWS/FAA)
  91978 WEATHER FORECAST
10-Day model forecast maps
2025 Hurricanes

SPRING VALLEY, CA 91978
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
TODAY
Partly cloudy. A slight chance of showers and thunderstorms this afternoon. Highs 86 to 91 in the western valleys to 92 to 97 near the foothills. Areas of winds west to 10 mph. Chance of measurable precipitation 20 percent.
TONIGHT
Partly cloudy. Lows 65 to 72. Areas of winds west to 10 mph in the evening becoming light.
MONDAY
Partly cloudy. A chance of showers and a slight chance of thunderstorms in the afternoon. Highs 84 to 89 in the western valleys to 90 to 95 near the foothills. Areas of winds west to 10 mph. Chance of measurable precipitation 50 percent.
MONDAY NIGHT
Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows 62 to 68. Areas of winds west to 10 mph in the evening becoming light. Chance of measurable precipitation 20 percent.
TUESDAY
Partly cloudy. Patchy fog in the morning. A chance of showers and thunderstorms in the afternoon. Highs 82 to 87 in the western valleys to 87 to 92 near the foothills. Light winds becoming west 10 mph in the afternoon. Chance of measurable precipitation 40 percent.
TUESDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 60 to 65.
WEDNESDAY
Patchy fog in the morning. Partly cloudy in the morning, then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs 82 to 87 in the western valleys to 86 to 91 near the foothills.
WEDNESDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 60 to 64.
THURSDAY
Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 81 to 86 in the western valleys to 85 to 90 near the foothills.
THURSDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 60 to 63.
FRIDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 81 to 86 in the western valleys to 84 to 89 near the foothills.
FRIDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 58 to 62.
SATURDAY
Partly cloudy with patchy fog in the morning... Becoming sunny. Highs 80 to 85 in the western valleys to 85 to 90 near the foothills.

  91978 WEATHER SATELLITE LOOPS
Visible Weather Satellite
SPRING VALLEY, CA 91978
Infrared Weather Satellite
SPRING VALLEY, CA 91978
  91978 WEATHER RADAR LOOP
NEXRAD Weather Radar
SPRING VALLEY, CA 91978
 MOS COMPUTER WEATHER FORECAST

SAN DIEGO/BROWN, CA 3 hourly weather forecast
weather forecast created  6:00 AM MDT  8/24/2025
Sunday
24 AUG 2025		 SPRING VALLEY, CA 91978 weather forecast Day 1, 12 hours 11 AM 79° 81° Partly Cloudy 6%

 0% Thunder
( 12% severe)		 W   8 67% 67°
High 81° SPRING VALLEY, CA 91978 weather forecast Day 1, 15 hours 2 PM 80° 82° Clear W   12 65% 67°
Partly Cloudy



 SPRING VALLEY, CA 91978 weather forecast Day 1, 18 hours 5 PM 78° 80° Partly Cloudy 3%

 0% Thunder
( 5% severe)		 W   9 67% 66°
SPRING VALLEY, CA 91978 weather forecast Day 1, 21 hours 8 PM 71° 71° Partly Cloudy WNW   6 81% 65°
Monday
25 AUG 2025		 SPRING VALLEY, CA 91978 weather forecast Day 2, 0 hours 11 PM 70° 70° Partly Cloudy 2%

 0% Thunder
( 0% severe)		 W   5 84% 65°
Low 68° SPRING VALLEY, CA 91978 weather forecast Day 2, 3 hours 2 AM 69° 69° Mostly Cloudy NW   3 90% 66°
High 80° SPRING VALLEY, CA 91978 weather forecast Day 2, 6 hours 5 AM 68° 68° Mostly Cloudy 5%

 0% Thunder
( 1% severe)		 NW   2 93% 66°

Decreasing Clouds



 SPRING VALLEY, CA 91978 weather forecast Day 2, 9 hours 8 AM 69° 69° Mostly Cloudy WNW   3 90% 66°
SPRING VALLEY, CA 91978 weather forecast Day 2, 12 hours 11 AM 77° 79° Partly Cloudy 16%
RAIN
<.01 in		 0% Thunder
( 9% severe)		 W   8 71% 67°
SPRING VALLEY, CA 91978 weather forecast Day 2, 15 hours 2 PM 78° 80° Clear W   12 67% 66°
SPRING VALLEY, CA 91978 weather forecast Day 2, 18 hours 5 PM 76° 78° Partly Cloudy 7%

 0% Thunder
( 3% severe)		 W   9 69% 65°
SPRING VALLEY, CA 91978 weather forecast Day 2, 21 hours 8 PM 69° 69° Partly Cloudy WNW   6 84% 64°
Tuesday
26 AUG 2025		 SPRING VALLEY, CA 91978 weather forecast Day 3, 0 hours 11 PM 68° 68° Mostly Cloudy 5%

 0% Thunder
( 1% severe)		 WNW   5 87% 64°
Low 66° SPRING VALLEY, CA 91978 weather forecast Day 3, 3 hours 2 AM 68° 68° Mostly Cloudy NW   2 90% 65°
High 78° SPRING VALLEY, CA 91978 weather forecast Day 3, 6 hours 5 AM 67° 67° Mostly Cloudy 6%

 0% Thunder
( 1% severe)		 N   2 93% 65°

Decreasing Clouds



 SPRING VALLEY, CA 91978 weather forecast Day 3, 9 hours 8 AM 67° 67° Mostly Cloudy WNW   2 97% 66°
SPRING VALLEY, CA 91978 weather forecast Day 3, 15 hours 11 AM 76° 77° Partly Cloudy 10%
RAIN
<.01 in		 0% Thunder
( 4% severe)		 W   8 74% 67°
SPRING VALLEY, CA 91978 weather forecast Day 3, 18 hours 2 PM 77° 79° Clear W   12 69% 66°
SPRING VALLEY, CA 91978 weather forecast Day 3, 21 hours 5 PM 75° 75° Clear     W   9 71% 65°

SAN DIEGO/BROWN, CA extended weather forecast
Wednesday
27 AUG 2025		 Thursday
28 AUG 2025		 Friday
29 AUG 2025		 Saturday
30 AUG 2025		 Sunday
31 AUG 2025
Low 62° Low 60° Low 60° Low 59° Low 60°
High 82° High 83° High 83° High 80° High 79°
SPRING VALLEY, CA 91978 weather forecast Day 4 SPRING VALLEY, CA 91978 weather forecast Day 5 SPRING VALLEY, CA 91978 weather forecast Day 6 SPRING VALLEY, CA 91978 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Partly Cloudy
 Clear
2% Rain		 Clear
2% Rain		 Clear
2% Rain		 Partly Cloudy
2% Rain
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