Appleton Regional Airport Weather Forecast

    • 62
    • 86

    Slight Chance Thunderstorms

    • 59
    • 78

    Mostly Cloudy

    • 57
    • 73

    Mostly Cloudy

    • 60
    • 71

    Chance Rain Showers

    • 61
    • 76

    Chance Rain Showers

    • 59
    • 77

    Chance Rain Showers

Today 17 Sep Outagamie

Mostly sunny. Highs in the upper 80s. Southwest wind around 5 Mph.

Tonight 17 Sep Outagamie

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly cloudy after midnight. Patchy fog after midnight. Lows in the lower 60s. Light and variable wind. Chance of rain 20 percent.

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Appleton Regional Airport Temperature Statistics

September Temperature

Appleton-Outagamie (0 miles)

  • Lowest 4 September, 2025

    42.8 °F

  • Average September

    61 °F

  • Highest 14 September, 2025

    82.4 °F

Climate (2020–Present)

Appleton-Outagamie (0 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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