Lower Granite State Airport Weather Forecast

    • 61
    • 88

    Cloudy

    • 57
    • 79

    Chance Rain Showers

    • 58
    • 87

    Slight Chance Thunderstorms

    • 60
    • 92

    Mostly Sunny

    • 62
    • 96

    Sunny

    • 61
    • 95

    Mostly Sunny

    • 62
    • 93

    Mostly Sunny

Today 20 Jul Washington Palouse

Mostly cloudy. Highs in the upper 70s to lower 80s. Southwest wind 5 to 15 Mph with Gusts up to 20 Mph.

Tonight 20 Jul Washington Palouse

Cloudy. A chance of rain Showers. Lows in the lower 50s to lower 60s. Southwest wind 5 to 10 Mph in the Evening, becoming light and variable. Chance of precipitation 50 percent. Rainfall Amounts less than a tenth of an inch.

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Lower Granite State Airport Temperature Statistics

July Temperature

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

  • Lowest 7 July, 2025

    58.6 °F

  • Average July

    81 °F

  • Highest 8 July, 2025

    104.6 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    45.4 °F

  • Average 2020–2025

    55.4 °F

  • Average High 2020–2025

    65.8 °F
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