Spring Valley Weather Forecast

    • 59
    • 74

    Increasing Clouds

    • 60
    • 72

    Increasing Clouds

    • 59
    • 74

    Mostly Cloudy

    • 57
    • 75

    Partly Sunny

    • 59
    • 75

    Mostly Cloudy

    • 60
    • 77

    Mostly Cloudy

    • 61
    • 79

    Partly Sunny

Today 28 Jun San Diego County Inland Valleys

Partly cloudy this morning. Becoming mostly sunny. Highs 74 to 79. Areas of Winds southwest to 10 Mph. Becoming 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 28 Jun San Diego County Inland Valleys

Partly cloudy this evening. Becoming mostly cloudy. Patchy fog overnight. Lows 49 to 58. Areas of Winds southwest to 10 Mph this evening becoming light.

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Spring Valley Temperature Statistics

June Temperature

Gillespie Field Airport (5.6 miles)

  • Lowest 9 June, 2026

    55.4 °F

  • Average June

    66.6 °F

  • Highest 12 June, 2026

    93.2 °F

Climate (2021–2026)

Gillespie Field Airport (5.6 miles)

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  • Average Low 2021–2026

    53.5 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    76.2 °F
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