McCarthy Lake State Wildlife Management Area Weather Forecast

    • 68
    • 82

    Chance Thunderstorms

    • 60
    • 81

    Partly Sunny

    • 59
    • 82

    Mostly Sunny

    • 61
    • 83

    Mostly Sunny

    • 58
    • 82

    Mostly Sunny

    • 52
    • 74

    Mostly Sunny

Today 18 Aug Wabasha

Mostly cloudy in the Morning, then becoming partly sunny. A chance of Showers. A chance of Thunderstorms. Some Thunderstorms may produce heavy rainfall in the morning. Humid with Highs in the upper 80s. Southeast Winds 5 to 10 Mph, becoming southwest in the afternoon. Chance of rain 50 percent. Heat index Values in the mid 90s in the afternoon.

Tonight 18 Aug Wabasha

Partly cloudy. Humid with Lows in the mid 60s. Northwest Winds around 5 Mph.

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McCarthy Lake State Wildlife Management Area Temperature Statistics

August Temperature

Winona, Winona Municipal Airport-Max Conrad Field (18 miles)

  • Lowest 1 August, 2025

    53.6 °F

  • Average August

    71.1 °F

  • Highest 8 August, 2025

    89.6 °F

Climate (2020–Present)

Winona, Winona Municipal Airport-Max Conrad Field (18 miles)

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  • Average Low 2020–2025

    39.2 °F

  • Average 2020–2025

    48.2 °F

  • Average High 2020–2025

    57.3 °F
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