Spring Valley Weather Forecast

    • 52
    • 66

    Slight Chance Rain Showers

    • 43
    • 63

    Mostly Cloudy

    • 44
    • 68

    Mostly Cloudy

    • 44
    • 70

    Partly Sunny

    • 47
    • 71

    Partly Sunny

    • 48
    • 72

    Mostly Cloudy

Today 23 Jan San Diego County Inland Valleys

Partly cloudy with a slight chance of Showers. Highs around 67 in the western Valleys to 61 to 66 near the Foothills. Light Winds becoming west 10 Mph this afternoon. Chance of measurable precipitation 20 percent.

Tonight 23 Jan San Diego County Inland Valleys

Mostly cloudy with a slight chance of Showers. Lows 43 to 50 in wind Sheltered Areas to 47 to 52 in warmer Locations. Areas of Winds northwest 10 Mph in the evening becoming light. Chance of measurable precipitation 20 percent.

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Spring Valley Temperature Statistics

January Temperature

Gillespie Field Airport (5.6 miles)

  • Lowest 10 January, 2026

    35.6 °F

  • Average January

    53.1 °F

  • Highest 14 January, 2026

    82.4 °F

Climate (2021–Present)

Gillespie Field Airport (5.6 miles)

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  • Average Low 2021–2026

    53.2 °F

  • Average 2021–2026

    60.2 °F

  • Average High 2021–2026

    75.8 °F
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