Bennington Lake Weather Forecast

    • 49
    • 81

    Rain Showers

    • 48
    • 61

    Rain Showers

    • 46
    • 70

    Mostly Sunny

    • 47
    • 71

    Mostly Sunny

    • 49
    • 75

    Mostly Sunny

    • 52
    • 79

    Mostly Sunny

Today 12 Sep Foothills of the Blue Mountains of Washington

Mostly cloudy. Highs in the upper 70s to lower 80s. Light Wind, becoming northwest 5 to 10 Mph in the afternoon.

Tonight 12 Sep Foothills of the Blue Mountains of Washington

A chance of rain Showers in the Evening, then rain Showers and a chance of Thunderstorms overnight. Lows in the mid to upper 40s. Windy. North wind 5 to 15 Mph shifting to the southwest 15 to 25 Mph overnight. Chance of precipitation near 100 percent. Rainfall Amounts up to a half of an inch Possible, except higher Amounts possible in Thunderstorms.

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Bennington Lake Temperature Statistics

September Temperature

Walla Walla Regional Airport (1.9 miles)

  • Lowest 4 September, 2026

    49.6 °F

  • Average September

    64.3 °F

  • Highest 9 September, 2026

    84.9 °F

Climate (2021–2026)

Walla Walla Regional Airport (1.9 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    54.8 °F

  • Average High 2021–2026

    64.5 °F
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