Santee Recreational Lakes Weather Forecast

    • 67
    • 90

    Increasing Clouds

    • 66
    • 89

    Decreasing Clouds

    • 65
    • 87

    Mostly Sunny

    • 66
    • 90

    Mostly Sunny

    • 68
    • 95

    Mostly Sunny

    • 68
    • 98

    Hot

    • 67
    • 96

    Mostly Sunny

Today 27 Jul San Diego County Inland Valleys

Partly cloudy this morning. Becoming mostly sunny. Highs 86 to 91 in the western Valleys to 92 to 97 near the Foothills. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph this afternoon.

Tonight 27 Jul San Diego County Inland Valleys

Mostly clear this evening. Becoming partly cloudy. Patchy fog overnight. Lows 64 to 68. Areas of Winds west to 10 Mph this evening becoming light.

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Santee Recreational Lakes Temperature Statistics

July Temperature

Gillespie Field Airport (1.9 miles)

  • Lowest 2 July, 2026

    60.8 °F

  • Average July

    71.7 °F

  • Highest 15 July, 2026

    93.2 °F

Climate (2021–2026)

Gillespie Field Airport (1.9 miles)

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  • Average Low 2021–2026

    53.5 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    76.2 °F
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