Mount Williamson Weather Forecast

    • 38
    • 40

    Rain Showers

    • 33
    • 39

    Rain Showers

    • 34
    • 39

    Slight Chance Snow Showers

    • 36
    • 41

    Breezy

    • 39
    • 42

    Partly Sunny

    • 41
    • 48

    Chance Rain Showers

Today 25 Dec Eastern San Gabriel Mountains

A chance of rain and snow Showers with a slight chance of Thunderstorms in the morning then rain and snow Showers likely with a slight chance of Thunderstorms in the afternoon. Some Thunderstorms may produce heavy rainfall. Snow accumulation up to 4 Inches. Snow level 6500 to 7000 feet decreasing to 6000 to 6500 feet in the late morning and afternoon. Highs from the upper 40s and 50s at low Elevations to the upper 30s to mid 40s at high Elevations. South Winds 20 to 30 Mph with Gusts to 45 Mph.

Tonight 25 Dec Eastern San Gabriel Mountains

Rain and snow Showers likely in the Evening, then rain and snow Showers after midnight. Snow level 6500 to 7000 feet decreasing to 6000 to 6500 feet in the late evening and early Morning, then increasing to 7500 to 8000 feet early in the morning. Snow accumulation up to 6 Inches. Lows in the 40s to around 50 except the lower to mid 30s Colder Valleys and Slopes. South Winds 15 to 25 Mph with Gusts to 40 Mph.

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Mount Williamson Temperature Statistics

December Temperature

Gray Butte Field Airport (16.8 miles)

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  • Average December

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Climate (2021–Present)

Gray Butte Field Airport (16.8 miles)

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  • Average Low 2021–2025

    50.2 °F
  • Average 2021–2025

    64.2 °F
  • Average High 2021–2025

    77.8 °F
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