Whitewater State Park Weather Forecast

    • 75
    • 93

    Slight Chance Thunderstorms

    • 66
    • 92

    Partly Sunny

    • 64
    • 85

    Mostly Sunny

    • 66
    • 87

    Slight Chance Thunderstorms

    • 66
    • 84

    Rain Showers Likely

    • 63
    • 79

    Chance Rain Showers

    • 63
    • 83

    Mostly Sunny

Today 26 Jul Winona

Mostly sunny. Hot with Highs in the lower 90s. Southwest Winds 5 to 10 Mph. Heat index Values up to 105.

Tonight 26 Jul Winona

Partly cloudy. A slight chance of Showers and Thunderstorms this Evening, then a chance of Showers and Thunderstorms after midnight. Lows in the mid 70s. South Winds 5 to 10 Mph. Chance of rain 30 percent. Heat index Values up to 105 early this evening.

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Whitewater State Park Temperature Statistics

July Temperature

Winona, Winona Municipal Airport-Max Conrad Field (17.4 miles)

  • Lowest 23 July, 2026

    50 °F

  • Average July

    74.6 °F

  • Highest 14 July, 2026

    91.4 °F

Climate (2021–2026)

Winona, Winona Municipal Airport-Max Conrad Field (17.4 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    57.6 °F
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