Prosser Weather Forecast

    • 44
    • 71

    Mostly Sunny

    • 49
    • 79

    Sunny

    • 51
    • 85

    Chance Rain Showers

    • 42
    • 67

    Chance Rain Showers

    • 44
    • 71

    Mostly Sunny

    • 50
    • 80

    Mostly Sunny

    • 51
    • 83

    Mostly Sunny

Today 30 Apr Lower Columbia Basin of Washington

Sunny. Highs in the upper 60s to lower 70s. Southwest wind 5 to 10 Mph.

Tonight 30 Apr Lower Columbia Basin of Washington

Mostly clear. Lows in the lower to mid 40s. Southeast wind 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Prosser Temperature Statistics

April Temperature

Sunnyside Municipal Airport (12.4 miles)

  • Lowest 3 April, 2025

    28.9 °F

  • Average April

    51.5 °F

  • Highest 27 April, 2025

    76.3 °F

Climate (2020–Present)

Sunnyside Municipal Airport (12.4 miles)

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  • Average Low 2020–2025

    39.6 °F

  • Average 2020–2025

    52.3 °F

  • Average High 2020–2025

    64.6 °F
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