Lake Winona Weather Forecast

    • 71
    • 91

    Rain Showers Likely

    • 67
    • 84

    Rain Showers Likely

    • 68
    • 84

    Partly Sunny

    • 69
    • 86

    Slight Chance Thunderstorms

    • 71
    • 90

    Chance Thunderstorms

    • 68
    • 88

    Slight Chance Thunderstorms

Today 23 Jul Winona

Partly sunny. A chance of Showers and Thunderstorms this morning. Highs in the upper 80s. South Winds 10 to 15 Mph. Chance of rain 50 percent. Heat index Values up to 100 this afternoon.

Tonight 23 Jul Winona

Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Showers and Thunderstorms. Humid with Lows in the lower 70s. Southwest Winds 10 to 15 Mph. Chance of rain 50 percent. Heat index Values in the mid 90s early in the evening.

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Lake Winona Temperature Statistics

July Temperature

Winona, Winona Municipal Airport-Max Conrad Field (4.3 miles)

  • Lowest 17 July, 2025

    53.6 °F

  • Average July

    73.8 °F

  • Highest 4 July, 2025

    91.4 °F

Climate (2020–Present)

Winona, Winona Municipal Airport-Max Conrad Field (4.3 miles)

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  • Average Low 2020–2025

    39.1 °F

  • Average 2020–2025

    48.2 °F

  • Average High 2020–2025

    57.3 °F
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