Pomeroy Weather Forecast

    • 41
    • 61

    Increasing Clouds

    • 44
    • 64

    Mostly Cloudy

    • 47
    • 66

    Mostly Sunny

    • 50
    • 68

    Partly Sunny

    • 47
    • 65

    Partly Sunny

    • 46
    • 65

    Partly Sunny

Today 26 Sep Lower Garfield and Asotin Counties

Mostly cloudy in the morning then clearing. Highs in the upper 50s to mid 60s. Gusts up to 20 Mph in the morning.

Tonight 26 Sep Lower Garfield and Asotin Counties

Mostly cloudy. Lows in the upper 30s to lower 40s.

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Pomeroy Temperature Statistics

September Temperature

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

  • Lowest 5 September, 2026

    49.6 °F

  • Average September

    65.3 °F

  • Highest 10 September, 2026

    88.6 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    45.5 °F

  • Average 2021–2026

    55.5 °F

  • Average High 2021–2026

    65.9 °F
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