Mount Williamson Weather Forecast

    • 73
    • 85

    Mostly Sunny

    • 69
    • 84

    Mostly Sunny

    • 67
    • 83

    Sunny

    • 67
    • 80

    Sunny

    • 68
    • 80

    Sunny

    • 69
    • 80

    Mostly Sunny

    • 69
    • 80

    Sunny

Today 1 Aug Eastern San Gabriel Mountains

Sunny. Highs from 90 to 100 at low Elevations to the lower to mid 80s at high Elevations. Southwest Winds around 15 Mph in the afternoon.

Tonight 1 Aug Eastern San Gabriel Mountains

Mostly clear. Lows in the 70s except the lower to mid 60s Colder Valleys and Slopes. Southwest Winds around 15 Mph in the evening.

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Mount Williamson Temperature Statistics

August Temperature

Gray Butte Field Airport (16.8 miles)

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  • Average August

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Climate (2021–2025)

Gray Butte Field Airport (16.8 miles)

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  • Average Low 2021–2025

    49.3 °F

  • Average 2021–2025

    63 °F

  • Average High 2021–2025

    76.7 °F
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