Farmington Weather Forecast

    • 47
    • 74

    Rain Showers

    • 46
    • 58

    Rain Showers

    • 41
    • 64

    Partly Sunny

    • 42
    • 66

    Partly Sunny

    • 43
    • 71

    Sunny

    • 45
    • 76

    Sunny

    • 48
    • 79

    Mostly Sunny

Today 12 Sep Washington Palouse

Mostly cloudy. Highs in the lower 70s to lower 80s. East wind 5 to 10 Mph.

Tonight 12 Sep Washington Palouse

Partly cloudy in the Evening, then rain Showers and a chance of Thunderstorms overnight. Lows in the upper 40s to lower 50s. Northeast wind 5 to 15 Mph shifting to the southwest overnight. Gusts up to 30 Mph. Chance of precipitation near 100 percent. Rainfall Amounts up to a half inch Possible, except higher Amounts possible in Thunderstorms.

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Farmington Temperature Statistics

September Temperature

Pullman / Moscow Regional Airport (23.6 miles)

  • Lowest 5 September, 2026

    42.7 °F

  • Average September

    60.2 °F

  • Highest 9 September, 2026

    78.1 °F

Climate (2021–2026)

Pullman / Moscow Regional Airport (23.6 miles)

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  • Average Low 2021–2026

    39.2 °F

  • Average 2021–2026

    49.4 °F

  • Average High 2021–2026

    59.6 °F
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