St John Weather Forecast

    • 61
    • 85

    Increasing Clouds

    • 59
    • 76

    Mostly Cloudy

    • 58
    • 72

    Mostly Cloudy

    • 61
    • 73

    Chance Rain Showers

    • 60
    • 77

    Chance Thunderstorms

    • 58
    • 77

    Chance Rain Showers

    • 54
    • 72

    Partly Sunny

Today 17 Sep Calumet

Mostly sunny. Temperatures in the lower to mid 80s. Southwest wind 5 to 10 Mph.

Tonight 17 Sep Calumet

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. Southwest wind around 5 Mph in the evening becoming light and variable. Chance of rain 20 percent.

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St John Temperature Statistics

September Temperature

Appleton-Outagamie (16.2 miles)

  • Lowest 4 September, 2025

    42.8 °F

  • Average September

    61 °F

  • Highest 14 September, 2025

    82.4 °F

Climate (2020–Present)

Appleton-Outagamie (16.2 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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