Sunnyside Park Weather Forecast

    • 48
    • 67

    Partly Sunny

    • 44
    • 64

    Increasing Clouds

    • 45
    • 68

    Partly Sunny

    • 45
    • 71

    Mostly Sunny

    • 46
    • 74

    Mostly Sunny

    • 48
    • 77

    Partly Sunny

    • 47
    • 75

    Partly Sunny

Today 29 Sep Washington Palouse

Mostly cloudy. Highs in the mid 60s to mid 70s. Southwest wind 5 to 15 Mph with Gusts up to 30 Mph.

Tonight 29 Sep Washington Palouse

Mostly cloudy. Lows in the upper 40s to lower 50s. Southwest wind 5 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sunnyside Park Temperature Statistics

September Temperature

Pullman / Moscow Regional Airport (3.7 miles)

  • Lowest 27 September, 2026

    37 °F

  • Average September

    59.2 °F

  • Highest 21 September, 2026

    83.6 °F

Climate (2021–2026)

Pullman / Moscow Regional Airport (3.7 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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