Lake Murray Weather Forecast

    • 66
    • 84

    Patchy Fog

    • 68
    • 85

    Mostly Sunny

    • 69
    • 89

    Patchy Fog

    • 71
    • 90

    Partly Sunny

    • 68
    • 86

    Partly Sunny

    • 66
    • 82

    Mostly Sunny

    • 68
    • 88

    Mostly Sunny

Today 23 Sep San Diego County Inland Valleys

Mostly sunny. Highs 87 to 92.

Tonight 23 Sep San Diego County Inland Valleys

Mostly clear. Patchy fog overnight. Lows 62 to 66. Areas of Winds west to 10 Mph this evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Murray Temperature Statistics

September Temperature

Gillespie Field Airport (4.3 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 (4.3 miles)

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  • Average Low 2021–2026

    53.6 °F

  • Average 2021–2026

    60.6 °F

  • Average High 2021–2026

    76.3 °F
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