Mount Williamson Weather Forecast

    • 48
    • 64

    Sunny

    • 48
    • 59

    Sunny

    • 47
    • 58

    Mostly Sunny

    • 47
    • 58

    Mostly Sunny

    • 45
    • 55

    Sunny

    • 47
    • 57

    Sunny

    • 48
    • 59

    Sunny

Today 10 Dec Eastern San Gabriel Mountains

Sunny. Highs from the mid 70s to lower 80s at low Elevations to the lower to mid 60s at high Elevations. Northeast Winds 15 to 25 Mph.

Tonight 10 Dec Eastern San Gabriel Mountains

Clear. Lows in the upper 40s and 50s except the lower to mid 40s Colder Valleys and Slopes. Northeast Winds around 15 Mph.

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Mount Williamson Temperature Statistics

December Temperature

Gray Butte Field Airport (16.8 miles)

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Climate (2020–Present)

Gray Butte Field Airport (16.8 miles)

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  • Average Low 2020–2025

    50.2 °F

  • Average 2020–2025

    64.2 °F

  • Average High 2020–2025

    77.8 °F
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