Mount Rainier Weather Forecast

    • 16
    • 24

    Snow Showers Likely

    • 13
    • 20

    Chance Snow Showers

    • 16
    • 27

    Breezy

    • 22
    • 36

    Mostly Sunny

    • 23
    • 42

    Chance Snow Showers

    • 19
    • 33

    Chance Snow Showers

    • 24
    • 37

    Chance Snow Showers

Today 21 May Cascades of Pierce and Lewis Counties

Partly sunny. Freezing level near 4500 feet increasing to 6500 feet in the afternoon.

Tonight 21 May Cascades of Pierce and Lewis Counties

Mostly cloudy. A slight chance of rain and snow late in the evening. A chance of rain and snow after Midnight, then rain and snow likely late in the night. Snow level near 6500 feet. Rainfall Amounts a tenth to a quarter of an inch possible. No snow accumulation.

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Mount Rainier Temperature Statistics

May Temperature

Stampede Pass (34.8 miles)

  • Lowest 4 May, 2025

    30.9 °F

  • Average May

    42.6 °F

  • Highest 2 May, 2025

    66 °F

Climate (2020–Present)

Stampede Pass (34.8 miles)

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  • Average Low 2020–2025

    36.2 °F

  • Average 2020–2025

    41.4 °F

  • Average High 2020–2025

    48.3 °F
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