Prosser Weather Forecast

    • 49
    • 81

    Becoming Sunny

    • 50
    • 82

    Mostly Sunny

    • 50
    • 85

    Mostly Sunny

    • 49
    • 81

    Mostly Sunny

    • 49
    • 82

    Mostly Sunny

    • 49
    • 82

    Mostly Sunny

Today 3 Oct Lower Columbia Basin of Washington

Sunny. Highs in the upper 70s to lower 80s. Light Wind, becoming north 5 to 10 Mph in the afternoon.

Tonight 3 Oct Lower Columbia Basin of Washington

Mostly clear. Lows in the upper 40s to lower 50s. North wind 5 to 10 Mph in the Evening, becoming light.

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Prosser Temperature Statistics

October Temperature

Sunnyside Municipal Airport (12.4 miles)

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  • Average October

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Climate (2021–2026)

Sunnyside Municipal Airport (12.4 miles)

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  • Average Low 2021–2026

    38.8 °F

  • Average 2021–2026

    51 °F

  • Average High 2021–2026

    63 °F
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