Mount Williamson Weather Forecast

    • 66
    • 76

    Mostly Sunny

    • 67
    • 75

    Partly Sunny

    • 68
    • 75

    Partly Sunny

    • 68
    • 77

    Mostly Sunny

    • 70
    • 80

    Mostly Sunny

    • 69
    • 80

    Mostly Sunny

Today 18 Jul Eastern San Gabriel Mountains

Sunny. Highs from the 80s to lower 90s at low Elevations to the 70s at high Elevations. Southwest Winds around 15 Mph in the afternoon.

Tonight 18 Jul Eastern San Gabriel Mountains

Mostly clear. Lows in the mid 60s to lower 70s except the mid 50s to around 60 Colder Valleys and Slopes. Southwest Winds around 15 Mph in the evening.

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Mount Williamson Temperature Statistics

July Temperature

Gray Butte Field Airport (16.8 miles)

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  • Average July

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Climate (2021–2025)

Gray Butte Field Airport (16.8 miles)

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  • Average Low 2021–2025

    49.7 °F

  • Average 2021–2025

    63.5 °F

  • Average High 2021–2025

    77.1 °F
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