Bumping Lake Weather Forecast

    • 48
    • 69

    Mostly Sunny

    • 51
    • 74

    Mostly Sunny

    • 40
    • 62

    Partly Sunny

    • 42
    • 58

    Chance Rain Showers

    • 41
    • 54

    Partly Sunny

Today 8 Sep Upper Slopes of the Eastern Washington Cascades Crest

Sunny. Patchy dense fog in the morning. Highs in the lower 60s to lower 70s.

Tonight 8 Sep Upper Slopes of the Eastern Washington Cascades Crest

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

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Bumping Lake Temperature Statistics

September Temperature

Stampede Pass (29.2 miles)

  • Lowest 3 September, 2026

    39.9 °F

  • Average September

    47 °F

  • Highest 1 September, 2026

    61 °F

Climate (2021–2026)

Stampede Pass (29.2 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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