Prosser Weather Forecast

    • 20
    • 38

    Mostly Sunny

    • 33
    • 39

    Chance Rain

    • 34
    • 48

    Rain

    • 28
    • 47

    Chance Rain

    • 25
    • 42

    Chance Rain/Snow

    • 21
    • 38

    Chance Snow

Today 29 Jan Lower Columbia Basin of Washington

Sunny. Highs in the mid to upper 30s. Light wind.

Tonight 29 Jan Lower Columbia Basin of Washington

Clear. Lows 17 to 22. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Prosser Temperature Statistics

January Temperature

Sunnyside Municipal Airport (12.4 miles)

  • Lowest 26 January, 2025

    17.6 °F

  • Average January

    32.2 °F

  • Highest 11 January, 2025

    51.4 °F

Climate (2020–Present)

Sunnyside Municipal Airport (12.4 miles)

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  • Average Low 2020–2025

    39.5 °F

  • Average 2020–2025

    52.3 °F

  • Average High 2020–2025

    64.7 °F
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