Spring Valley Weather Forecast

    • 54
    • 64

    Rain Showers Likely

    • 50
    • 63

    Chance Rain Showers

    • 48
    • 64

    Chance Rain Showers

    • 47
    • 63

    Partly Sunny

    • 44
    • 63

    Mostly Sunny

    • 45
    • 65

    Mostly Sunny

Today 4 Jan San Diego County Inland Valleys

Mostly cloudy with a chance of Showers. A slight chance of Thunderstorms in the afternoon. Highs around 65 in the western Valleys to 58 to 62 near the Foothills. Areas of Winds south 10 to 15 Mph. Gusts to 25 Mph in the afternoon. Chance of measurable precipitation 50 percent.

Tonight 4 Jan San Diego County Inland Valleys

Mostly cloudy with a slight chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely overnight. Locally heavy rainfall possible overnight. Lows 48 to 53. Areas of Winds south 10 Mph. Chance of measurable precipitation 70 percent.

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Spring Valley Temperature Statistics

January Temperature

Gillespie Field Airport (5.6 miles)

  • Lowest 1 January, 2026

    59 °F

  • Average January

    60.7 °F

  • Highest 1 January, 2026

    64.4 °F

Climate (2021–Present)

Gillespie Field Airport (5.6 miles)

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  • Average Low 2021–2026

    53.1 °F

  • Average 2021–2026

    60.2 °F

  • Average High 2021–2026

    75.8 °F
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