Dayton Weather Forecast

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    • 63

    Chance Rain Showers

    • 41
    • 64

    Rain Showers

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    • 61

    Chance Rain Showers

    • 47
    • 67

    Chance Rain Showers

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    • 68

    Slight Chance Thunderstorms

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    Partly Sunny

Today 16 May Foothills of the Blue Mountains of Washington

Cloudy with a chance of rain Showers in the Morning, then partly cloudy with a chance of rain Showers in the afternoon. Highs in the 60s. Southwest wind 5 to 15 Mph with Gusts to around 25 Mph. Chance of precipitation 50 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 16 May Foothills of the Blue Mountains of Washington

Mostly cloudy. Lows in the mid to upper 40s. South wind 5 to 10 Mph.

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Dayton Temperature Statistics

May Temperature

Walla Walla Regional Airport (21.7 miles)

  • Lowest 5 May, 2025

    34.6 °F

  • Average May

    59.3 °F

  • Highest 2 May, 2025

    86.6 °F

Climate (2020–Present)

Walla Walla Regional Airport (21.7 miles)

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  • Average Low 2020–2025

    44.9 °F

  • Average 2020–2025

    54.3 °F

  • Average High 2020–2025

    63.8 °F
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