Mukwonago Weather Forecast

    • 61
    • 84

    Increasing Clouds

    • 62
    • 78

    Chance Rain Showers

    • 61
    • 77

    Chance Rain Showers

    • 61
    • 80

    Chance Thunderstorms

    • 60
    • 79

    Chance Rain Showers

    • 56
    • 75

    Slight Chance Thunderstorms

Today 18 Sep Waukesha

Mostly sunny. A 20 percent chance of light rain Showers in the afternoon. Highs in the lower 80s. Southwest Winds up to 5 Mph shifting to the east in the afternoon.

Tonight 18 Sep Waukesha

Partly cloudy. Lows in the upper 50s. Calm Winds.

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Mukwonago Temperature Statistics

September Temperature

Burlington Municipal Airport (11.8 miles)

  • Lowest 8 September, 2025

    36.9 °F

  • Average September

    59.9 °F

  • Highest 12 September, 2025

    82.2 °F

Climate (2020–Present)

Burlington Municipal Airport (11.8 miles)

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  • Average Low 2020–2025

    39.4 °F

  • Average 2020–2025

    49.8 °F

  • Average High 2020–2025

    59.5 °F
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