Sunnyside Park Weather Forecast

    • 30
    • 39

    Chance Snow

    • 31
    • 38

    Rain/Snow Likely

    • 30
    • 42

    Slight Chance Rain/Snow

    • 34
    • 40

    Rain Likely

    • 30
    • 41

    Chance Rain/Snow

    • 30
    • 40

    Rain/Snow Likely

Today 20 Dec Washington Palouse

Mostly cloudy with a chance of rain or snow. Highs in the upper 30s to mid 40s. Southwest wind 5 to 15 Mph with Gusts up to 30 Mph. Chance of precipitation 50 percent.

Tonight 20 Dec Washington Palouse

Mostly cloudy. Lows in the upper 20s to lower 30s. South wind 5 to 15 Mph.

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Sunnyside Park Temperature Statistics

December Temperature

Pullman / Moscow Regional Airport (3.7 miles)

  • Lowest 1 December, 2025

    26.1 °F

  • Average December

    42 °F

  • Highest 10 December, 2025

    59 °F

Climate (2020–Present)

Pullman / Moscow Regional Airport (3.7 miles)

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  • Average Low 2020–2025

    39.4 °F

  • Average 2020–2025

    49.4 °F

  • Average High 2020–2025

    59.4 °F
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