National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

East Troy Municipal Airport (K57C)

Lat: 42.8°NLon: 88.37°WElev: 860ft.

Fair

65°F

18°C

Humidity 50%
Wind Speed SW 13 G 21 mph
Barometer 29.88 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 21 Apr 10:55 am CDT
Extended Forecast for

Mukwonago WI

  • Today

    Today: Showers and thunderstorms likely before 2pm, then scattered rain between 2pm and 3pm. Mostly sunny, with a high near 73. Southwest wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F

    Showers
    Likely

  • Tonight

    Tonight: Mostly clear, with a low around 43. West wind around 5 mph becoming northeast after midnight.

    Low: 43 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 71. Northeast wind 5 to 10 mph becoming southeast in the afternoon.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 51. South wind around 5 mph.

    Low: 51 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 78. South wind 5 to 15 mph.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 60. South wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 72. South wind around 10 mph becoming west in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 45. Northwest wind 5 to 10 mph.

    Low: 45 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and thunderstorms likely before 2pm, then scattered rain between 2pm and 3pm. Mostly sunny, with a high near 73. Southwest wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Mostly clear, with a low around 43. West wind around 5 mph becoming northeast after midnight.
Wednesday
Sunny, with a high near 71. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Wednesday Night
Partly cloudy, with a low around 51. South wind around 5 mph.
Thursday
Mostly sunny, with a high near 78. South wind 5 to 15 mph.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 60. South wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 72. South wind around 10 mph becoming west in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 45. Northwest wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
Mostly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 63.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 45.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mukwonago WI
 42.86°N 88.34°W (Elev. 791 ft)
Last Update:
10:52 am CDT Apr 21, 2026
Forecast Valid:
11am CDT Apr 21, 2026-6pm CDT Apr 27, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation