Santee Recreational Lakes Weather Forecast

    • 73
    • 96

    Partly Sunny

    • 74
    • 97

    Hot

    • 74
    • 98

    Hot

    • 70
    • 96

    Mostly Sunny

    • 67
    • 90

    Mostly Sunny

    • 64
    • 86

    Mostly Sunny

    • 64
    • 85

    Mostly Sunny

Today 7 Sep San Diego County Inland Valleys

Partly cloudy this morning. Becoming mostly sunny. Highs 91 to 96. Light Winds becoming west 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 7 Sep San Diego County Inland Valleys

Partly cloudy. Lows 69 to 75. Areas of Winds northwest 10 to 15 Mph this evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Santee Recreational Lakes Temperature Statistics

September Temperature

Gillespie Field Airport (1.9 miles)

  • Lowest 3 September, 2026

    57.2 °F

  • Average September

    69.6 °F

  • Highest 5 September, 2026

    95 °F

Climate (2021–2026)

Gillespie Field Airport (1.9 miles)

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  • Average Low 2021–2026

    53.5 °F

  • Average 2021–2026

    60.6 °F

  • Average High 2021–2026

    76.3 °F
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