National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

EW3070 Rancho San Diego (E3070)

Lat: 32.74217°NLon: 116.93667°WElev: 495.01ft.

NA

71°F

22°C

Humidity 89%
Wind Speed SSW 0 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 68°F (20°C)
Visibility NA
Last update 21 Aug 10:25 PM PDT
Extended Forecast for

Spring Valley CA

Heat Advisory August 22, 10:00am until August 24, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, mostly clear, with a low around 69. Southwest wind around 5 mph becoming calm.

    Low: 69 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, sunny, with a high near 93. Light west wind increasing to 5 to 10 mph in the morning.

    High: 93 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 70. Southwest wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 94. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 94 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 71. West wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 69. Southwest wind around 5 mph becoming calm.
Saturday
Patchy fog before 8am. Otherwise, sunny, with a high near 93. Light west wind increasing to 5 to 10 mph in the morning.
Saturday Night
Mostly clear, with a low around 70. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 94. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 71. West wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 71.
Tuesday
Sunny, with a high near 95.
Tuesday Night
Mostly clear, with a low around 72.
Wednesday
Sunny, with a high near 95.
Wednesday Night
Mostly clear, with a low around 72.
Thursday
Sunny, with a high near 95.
Thursday Night
Mostly clear, with a low around 72.
Friday
Mostly sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Spring Valley CA
 32.74°N 116.97°W (Elev. 600 ft)
Last Update:
12:32 pm PDT Aug 21, 2026
Forecast Valid:
10pm PDT Aug 21, 2026-6pm PDT Aug 28, 2026
 
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Additional Resources

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Chance of Precipitation