Mount Wilson Weather Forecast

    • 64
    • 71

    Sunny

    • 66
    • 76

    Sunny

    • 68
    • 78

    Sunny

    • 74
    • 84

    Mostly Sunny

    • 75
    • 89

    Mostly Sunny

    • 77
    • 90

    Mostly Sunny

Today 17 Aug Eastern San Gabriel Mountains

Sunny. Highs from the upper 70s to mid 80s at low Elevations to the upper 60s to mid 70s at high Elevations.

Tonight 17 Aug Eastern San Gabriel Mountains

Clear. Lows in the mid 50s to lower 60s. Southwest Winds around 15 Mph in the evening.

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Mount Wilson Temperature Statistics

August Temperature

El Monte (9.9 miles)

  • Lowest 1 August, 2025

    60.8 °F

  • Average August

    81.4 °F

  • Highest 7 August, 2025

    96.8 °F

Climate (2020–Present)

El Monte (9.9 miles)

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  • Average Low 2020–2025

    59.4 °F

  • Average 2020–2025

    70.3 °F

  • Average High 2020–2025

    77.1 °F
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