Lower Granite State Airport Weather Forecast

    • 39
    • 54

    Rain

    • 36
    • 48

    Chance Rain

    • 33
    • 48

    Chance Rain

    • 38
    • 46

    Rain Likely

    • 35
    • 49

    Chance Rain

    • 36
    • 48

    Chance Rain

Today 18 Dec Washington Palouse

Rain or snow. Snow accumulation up to 1 inch. Highs in the mid 40s to lower 50s. Southeast wind 5 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation near 100 percent.

Tonight 18 Dec Washington Palouse

Rain. A chance of snow overnight. No snow accumulation. Lows in the 30s. Windy. Southwest wind 15 to 25 Mph with Gusts up to 40 Mph. Chance of precipitation near 100 percent.

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Lower Granite State Airport Temperature Statistics

December Temperature

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

  • Lowest 1 December, 2025

    28 °F

  • Average December

    45.6 °F

  • Highest 10 December, 2025

    64.9 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    45.7 °F

  • Average 2020–2025

    55.7 °F

  • Average High 2020–2025

    66 °F
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