Lewiston Weather Forecast

    • 65
    • 75

    Rain Showers

    • 58
    • 78

    Chance Thunderstorms

    • 60
    • 77

    Chance Rain Showers

    • 66
    • 77

    Chance Thunderstorms

    • 69
    • 84

    Chance Thunderstorms

    • 69
    • 85

    Chance Thunderstorms

Today 18 Jul Winona

Mostly sunny. Near steady temperature in the mid 70s. South Winds 5 to 10 Mph.

Tonight 18 Jul Winona

Mostly cloudy. A slight chance of Showers and Thunderstorms in the Evening, then Showers with Thunderstorms likely after midnight. Warmer with Lows in the mid 60s. South Winds 5 to 10 Mph. Chance of rain 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lewiston Temperature Statistics

July Temperature

Winona, Winona Municipal Airport-Max Conrad Field (10.6 miles)

  • Lowest 13 July, 2025

    55.4 °F

  • Average July

    75 °F

  • Highest 4 July, 2025

    91.4 °F

Climate (2020–Present)

Winona, Winona Municipal Airport-Max Conrad Field (10.6 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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