Santee Recreational Lakes Weather Forecast

    • 72
    • 102

    Hot

    • 70
    • 100

    Hot

    • 69
    • 97

    Hot

    • 68
    • 95

    Mostly Sunny

    • 66
    • 90

    Partly Sunny

    • 63
    • 83

    Partly Sunny

Today 6 Oct San Diego County Inland Valleys

Mostly sunny. Hot. Highs 99 to 102 in the western Valleys to 95 to 100 near the Foothills. Areas of Winds east to 10 Mph becoming west 10 Mph with Gusts to 25 Mph in the afternoon.

Tonight 6 Oct San Diego County Inland Valleys

Mostly clear. Lows 68 to 72. Light Winds.

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Santee Recreational Lakes Temperature Statistics

October Temperature

Gillespie Field Airport (1.9 miles)

  • Lowest 1 October, 2026

    60.8 °F

  • Average October

    76.8 °F

  • Highest 3 October, 2026

    105.8 °F

Climate (2021–2026)

Gillespie Field Airport (1.9 miles)

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  • Average Low 2021–2026

    53.6 °F

  • Average 2021–2026

    60.7 °F

  • Average High 2021–2026

    76.4 °F
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