Prosser Weather Forecast

    • 61
    • 66

    Chance Rain Showers

    • 61
    • 89

    Rain Showers

    • 58
    • 68

    Rain Showers Likely

    • 60
    • 69

    Rain Showers Likely

    • 57
    • 70

    Chance Rain Showers

    • 56
    • 71

    Chance Rain Showers

Today 13 Sep Adams

Partly cloudy with chance of Showers and slight chance of Thunderstorms in the Morning, then mostly cloudy with slight chance of Showers in the afternoon. Highs in the lower 70s. East Winds 10 to 15 Mph with Gusts to around 25 Mph. Chance of precipitation 30 percent.

Tonight 13 Sep Adams

Mostly cloudy with a 30 percent chance of Showers and Thunderstorms. Near steady temperature in the upper 50s. Light Winds.

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Prosser Temperature Statistics

September Temperature

Hastings, Hastings Municipal Airport (9.3 miles)

  • Lowest 10 September, 2026

    59 °F

  • Average September

    81.1 °F

  • Highest 7 September, 2026

    98.7 °F

Climate (2021–2026)

Hastings, Hastings Municipal Airport (9.3 miles)

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  • Average Low 2021–2026

    42 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    65.7 °F
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