Lower Granite State Airport Weather Forecast

    • 58
    • 87

    Sunny

    • 57
    • 93

    Sunny

    • 58
    • 94

    Mostly Sunny

    • 60
    • 94

    Partly Sunny

    • 60
    • 89

    Partly Sunny

    • 54
    • 81

    Partly Sunny

Today 16 Sep Washington Palouse

Sunny. Highs in the upper 70s to mid 80s. East wind 5 to 15 Mph with Gusts up to 20 Mph.

Tonight 16 Sep Washington Palouse

Clear. Lows in the upper 40s to mid 50s. East wind 5 to 10 Mph.

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Lower Granite State Airport Temperature Statistics

September Temperature

Lewiston, Lewiston-Nez Perce County Airport (28.6 miles)

  • Lowest 13 September, 2025

    57 °F

  • Average September

    74.9 °F

  • Highest 2 September, 2025

    102 °F

Climate (2020–Present)

Lewiston, Lewiston-Nez Perce County Airport (28.6 miles)

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  • Average Low 2020–2025

    45.5 °F

  • Average 2020–2025

    55.5 °F

  • Average High 2020–2025

    65.9 °F
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