Oak Oasis County Park Weather Forecast

    • 59
    • 80

    Mostly Sunny

    • 61
    • 85

    Mostly Sunny

    • 65
    • 89

    Sunny

    • 68
    • 94

    Mostly Sunny

    • 70
    • 96

    Sunny

    • 72
    • 96

    Sunny

Today 29 Sep San Diego County Inland Valleys

Mostly sunny. Highs 80 to 85. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph in the afternoon.

Tonight 29 Sep San Diego County Inland Valleys

Mostly clear in the evening. Becoming partly cloudy. Lows 57 to 63. Areas of Winds south to 10 Mph becoming east overnight.

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Oak Oasis County Park Temperature Statistics

September Temperature

Gillespie Field Airport (7.5 miles)

  • Lowest 3 September, 2026

    57.2 °F

  • Average September

    75.7 °F

  • Highest 9 September, 2026

    107.6 °F

Climate (2021–2026)

Gillespie Field Airport (7.5 miles)

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  • Average Low 2021–2026

    53.6 °F

  • Average 2021–2026

    60.7 °F

  • Average High 2021–2026

    76.3 °F
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