Winchester Weather Forecast

    • 60
    • 80

    Slight Chance Thunderstorms

    • 60
    • 75

    Chance Thunderstorms

    • 60
    • 74

    Chance Thunderstorms

    • 60
    • 74

    Chance Thunderstorms

    • 59
    • 75

    Chance Rain Showers

    • 56
    • 74

    Slight Chance Rain Showers

Today 18 Sep Winnebago

Humid. Partly cloudy with a chance of Showers and a slight chance of Thunderstorms. Temperatures in the mid to upper 70s. East wind 5 to 10 Mph.

Tonight 18 Sep Winnebago

Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 60s. East wind 5 to 10 Mph.

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Winchester Temperature Statistics

September Temperature

Appleton-Outagamie (8.1 miles)

  • Lowest 4 September, 2025

    42.8 °F

  • Average September

    61.5 °F

  • Highest 16 September, 2025

    84.2 °F

Climate (2020–Present)

Appleton-Outagamie (8.1 miles)

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  • Average Low 2020–2025

    39.5 °F

  • Average 2020–2025

    46.5 °F

  • Average High 2020–2025

    56.3 °F
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