Mount Rainier Weather Forecast

    • 20
    • 26

    Chance Snow

    • 17
    • 28

    Blizzard

    • 19
    • 22

    Blizzard

    • 15
    • 24

    Blizzard

    • 7
    • 19

    Blizzard

    • 8
    • 10

    Blizzard

    • 10
    • 15

    Blizzard

Today 12 Dec Cascades of Pierce and Lewis Counties

Mostly cloudy. A chance of rain in the morning. A chance of snow through the day. A slight chance of rain in the afternoon. Patchy dense fog late in the morning. Snow level near 7000 feet.

Tonight 12 Dec Cascades of Pierce and Lewis Counties

Mostly cloudy with a slight chance of rain in the Evening, then partly cloudy after midnight. Patchy dense fog after midnight. Snow level near 6500 feet.

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  • Temperature Forecast NOAA

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Mount Rainier Temperature Statistics

December Temperature

Stampede Pass (34.8 miles)

  • Lowest 1 December, 2025

    23 °F

  • Average December

    34.6 °F

  • Highest 10 December, 2025

    48 °F

Climate (2020–Present)

Stampede Pass (34.8 miles)

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  • Average Low 2020–2025

    36.2 °F

  • Average 2020–2025

    41.5 °F

  • Average High 2020–2025

    48.3 °F
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