Palouse Falls State Park Weather Forecast

    • 37
    • 60

    Slight Chance Rain Showers

    • 38
    • 66

    Decreasing Clouds

    • 42
    • 72

    Mostly Sunny

    • 45
    • 74

    Mostly Sunny

    • 46
    • 76

    Mostly Sunny

    • 47
    • 80

    Mostly Sunny

    • 48
    • 80

    Mostly Sunny

Today 16 May Lower Columbia Basin of Washington

Mostly cloudy with a 20 percent chance of Showers and Thunderstorms. Highs in the lower to mid 60s. Windy. West wind 15 to 25 Mph.

Tonight 16 May Lower Columbia Basin of Washington

Partly cloudy. A 20 percent chance of rain Showers in the evening. Lows in the mid 30s to lower 40s. Breezy. West wind 10 to 20 Mph with Gusts to around 30 Mph.

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Palouse Falls State Park Temperature Statistics

May Temperature

Walla Walla Regional Airport (39.1 miles)

  • Lowest 11 May, 2026

    45.6 °F

  • Average May

    64.9 °F

  • Highest 2 May, 2026

    85.6 °F

Climate (2021–Present)

Walla Walla Regional Airport (39.1 miles)

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  • Average Low 2021–2026

    45.5 °F

  • Average 2021–2026

    55 °F

  • Average High 2021–2026

    64.6 °F
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