Winona Weather Forecast

    • 72
    • 93

    Chance Thunderstorms

    • 72
    • 94

    Chance Thunderstorms

    • 72
    • 96

    Slight Chance Thunderstorms

    • 72
    • 96

    Mostly Sunny

    • 72
    • 96

    Mostly Sunny

    • 72
    • 96

    Slight Chance Thunderstorms

Today 15 Aug Montgomery

Partly cloudy. A slight chance of Showers and Thunderstorms after Midnight, then a chance of Showers and Thunderstorms this afternoon. Highs in the lower 90s. Light and variable Winds. Chance of rain 50 percent.

Tonight 15 Aug Montgomery

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Humid with Lows in the lower 70s. Light and variable Winds. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Winona Temperature Statistics

August Temperature

Winona-Montgomery County Airport (0.6 miles)

  • Lowest 3 August, 2025

    65.1 °F
  • Average August

    78.2 °F
  • Highest 12 August, 2025

    93.9 °F

Climate (2020–Present)

Winona-Montgomery County Airport (0.6 miles)

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  • Average Low 2020–2025

    54.4 °F
  • Average 2020–2025

    64.5 °F
  • Average High 2020–2025

    75.5 °F
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