Tieton State Airport Weather Forecast

    • 49
    • 66

    Sunny

    • 49
    • 75

    Mostly Sunny

    • 50
    • 73

    Mostly Sunny

    • 51
    • 74

    Mostly Sunny

    • 51
    • 75

    Mostly Sunny

    • 49
    • 73

    Partly Sunny

    • 48
    • 68

    Partly Sunny

Today 16 Sep Lower Slopes of the Eastern Washington Cascades Crest

Sunny. Highs in the lower 60s to lower 70s, except in the upper 60s to upper 70s Valleys. East wind 5 to 10 Mph with Gusts to around 25 Mph.

Tonight 16 Sep Lower Slopes of the Eastern Washington Cascades Crest

Mostly clear. Lows in the mid 40s to lower 50s. Northeast wind 5 to 10 Mph with Gusts to around 20 Mph in the Evening, becoming light.

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Tieton State Airport Temperature Statistics

September Temperature

Stampede Pass (44.7 miles)

  • Lowest 3 September, 2026

    39.9 °F

  • Average September

    49.5 °F

  • Highest 9 September, 2026

    71.1 °F

Climate (2021–2026)

Stampede Pass (44.7 miles)

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  • Average Low 2021–2026

    36.1 °F

  • Average 2021–2026

    41.5 °F

  • Average High 2021–2026

    48.2 °F
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