Twin Sisters Lake Weather Forecast

    • 22
    • 32

    Snow

    • 23
    • 28

    Snow Likely

    • 24
    • 30

    Snow Likely

    • 17
    • 29

    Snow Likely

    • 17
    • 32

    Partly Sunny

    • 20
    • 32

    Mostly Sunny

Today 24 Feb Upper Slopes of the Eastern Washington Cascades Crest

A chance of mountain snow in the Morning, then rain and mountain snow likely in the afternoon. Mountain snow accumulation of 1 to 3 Inches. Snow level 4000 feet. Highs in the lower to mid 30s. Gusts up to 20 Mph in the afternoon. Chance of precipitation 70 percent.

Tonight 24 Feb Upper Slopes of the Eastern Washington Cascades Crest

Mostly cloudy. Mountain snow likely in the Evening, then a chance of mountain snow overnight. Mountain snow accumulation up to 2 Inches. Lows in the lower to mid 20s. West wind 5 to 15 Mph with Gusts to around 35 Mph overnight. Chance of precipitation 70 percent.

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Twin Sisters Lake Temperature Statistics

February Temperature

Stampede Pass (36.7 miles)

  • Lowest 20 February, 2026

    18 °F

  • Average February

    29.7 °F

  • Highest 6 February, 2026

    52 °F

Climate (2021–Present)

Stampede Pass (36.7 miles)

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  • Average Low 2021–2026

    36.3 °F

  • Average 2021–2026

    41.6 °F

  • Average High 2021–2026

    48.4 °F
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