Rimrock Lake Weather Forecast

    • 51
    • 74

    Mostly Sunny

    • 54
    • 76

    Mostly Sunny

    • 50
    • 76

    Mostly Sunny

    • 38
    • 59

    Slight Chance Rain Showers

    • 36
    • 50

    Partly Sunny

    • 35
    • 50

    Partly Sunny

    • 39
    • 54

    Mostly Sunny

Today 6 Oct Upper Slopes of the Eastern Washington Cascades Crest

Mostly sunny. Highs in the mid 40s to lower 50s, except in the lower to mid 50s Valleys.

Tonight 6 Oct Upper Slopes of the Eastern Washington Cascades Crest

Mostly clear. Lows in the mid to upper 40s.

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Rimrock Lake Temperature Statistics

October Temperature

Stampede Pass (44.1 miles)

  • Lowest 1 October, 2026

    42.1 °F

  • Average October

    52.6 °F

  • Highest 4 October, 2026

    70 °F

Climate (2021–2026)

Stampede Pass (44.1 miles)

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  • Average Low 2021–2026

    36.2 °F

  • Average 2021–2026

    41.5 °F

  • Average High 2021–2026

    48.2 °F
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