Lewiston-Nez Perce County Airport Weather Forecast

    • 57
    • 83

    Mostly Sunny

    • 60
    • 89

    Mostly Sunny

    • 61
    • 89

    Mostly Sunny

    • 60
    • 87

    Partly Sunny

    • 59
    • 84

    Partly Sunny

    • 55
    • 80

    Partly Sunny

    • 56
    • 80

    Mostly Sunny

Today 16 Sep Lewiston Area

Sunny. Highs in the upper 70s to mid 80s.

Tonight 16 Sep Lewiston Area

Mostly clear. Lows in the 50s.

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Lewiston-Nez Perce County Airport Temperature Statistics

September Temperature

Lewiston, Lewiston-Nez Perce County Airport (0 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 (0 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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