Spring Valley Weather Forecast

    • 51
    • 66

    Increasing Clouds

    • 51
    • 64

    Rain Showers

    • 42
    • 60

    Partly Sunny

    • 44
    • 65

    Mostly Sunny

    • 47
    • 68

    Mostly Sunny

    • 49
    • 71

    Partly Sunny

    • 50
    • 72

    Chance Rain Showers

Today 25 Dec San Diego County Inland Valleys

Partly cloudy this morning. Becoming mostly sunny. A slight chance of Showers. Highs 66 to 69 in the western Valleys to 60 to 65 near the Foothills. Areas of Winds south 10 to 15 Mph with Gusts to 25 Mph. Chance of measurable precipitation 20 percent.

Tonight 25 Dec San Diego County Inland Valleys

Partly cloudy this evening. Becoming mostly cloudy. A slight chance of Showers. Lows 43 to 51 in wind Sheltered Areas to 47 to 52 in warmer Locations. Light Winds becoming southeast 10 Mph overnight. Chance of measurable precipitation 20 percent.

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Spring Valley Temperature Statistics

December Temperature

Gillespie Field Airport (5.6 miles)

  • Lowest 5 December, 2025

    39.2 °F

  • Average December

    54.2 °F

  • Highest 10 December, 2025

    86 °F

Climate (2020–Present)

Gillespie Field Airport (5.6 miles)

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  • Average Low 2020–2025

    53.1 °F

  • Average 2020–2025

    60.2 °F

  • Average High 2020–2025

    75.8 °F
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