Asotin Weather Forecast

    • 58
    • 84

    Mostly Sunny

    • 59
    • 89

    Mostly Sunny

    • 61
    • 90

    Mostly Sunny

    • 63
    • 90

    Partly Sunny

    • 60
    • 86

    Partly Sunny

    • 55
    • 80

    Partly Sunny

Today 16 Sep Lower Garfield and Asotin Counties

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

Tonight 16 Sep Lower Garfield and Asotin Counties

Mostly clear. Lows in the 50s.

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Asotin Temperature Statistics

September Temperature

Lewiston, Lewiston-Nez Perce County Airport (2.5 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 (2.5 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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