Cooper Lake Weather Forecast

    • 54
    • 82

    Increasing Clouds

    • 51
    • 84

    Partly Sunny

    • 48
    • 71

    Sunny

    • 54
    • 79

    Sunny

    • 57
    • 85

    Mostly Sunny

    • 52
    • 84

    Mostly Sunny

Today 18 Jun Upper Slopes of the Eastern Washington Cascades Crest

Sunny. Highs in the lower 70s to lower 80s.

Tonight 18 Jun Upper Slopes of the Eastern Washington Cascades Crest

Partly cloudy. Lows in the upper 40s to mid 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cooper Lake Temperature Statistics

June Temperature

Stampede Pass (12.4 miles)

  • Lowest 6 June, 2026

    34 °F

  • Average June

    49.6 °F

  • Highest 15 June, 2026

    78.1 °F

Climate (2021–2026)

Stampede Pass (12.4 miles)

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  • Average Low 2021–2026

    36.3 °F

  • Average 2021–2026

    41.7 °F

  • Average High 2021–2026

    48.4 °F
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