Lower Granite Lake Weather Forecast

    • 48
    • 57

    Chance Rain

    • 42
    • 66

    Rain Likely

    • 39
    • 57

    Partly Sunny

    • 44
    • 56

    Chance Rain

    • 47
    • 61

    Chance Rain

    • 47
    • 62

    Rain Likely

Today 31 Oct Washington Palouse

Partly sunny. Highs in the lower 50s. East wind 5 to 10 Mph in the Morning, becoming light and variable.

Tonight 31 Oct Washington Palouse

Cloudy. A chance of rain overnight. Lows in the mid 40s. Light Wind, becoming southeast 5 to 10 Mph overnight. Chance of precipitation 20 percent.

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Lower Granite Lake Temperature Statistics

October Temperature

Lewiston, Lewiston-Nez Perce County Airport (22.4 miles)

  • Lowest 28 October, 2025

    34 °F

  • Average October

    53.6 °F

  • Highest 8 October, 2025

    80.1 °F

Climate (2020–Present)

Lewiston, Lewiston-Nez Perce County Airport (22.4 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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