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

Hazardous Weather Conditions

Current conditions at

East Troy Municipal Airport (K57C)

Lat: 42.8°NLon: 88.37°WElev: 860ft.

Partly Cloudy

71°F

22°C

Humidity 99%
Wind Speed Calm
Barometer 29.88 in
Dewpoint 70°F (21°C)
Visibility 7.00 mi
Last update 11 Aug 9:55 pm CDT
Extended Forecast for

Mukwonago WI

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Areas of fog before 10am. Otherwise, partly sunny, with a high near 82. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 82 °F

    Areas Fog
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 8pm, then a slight chance of showers after 5am. Mostly cloudy, with a low around 63. East wind around 5 mph becoming calm. Chance of precipitation is 20%.

    Low: 63 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 1pm. Cloudy, with a high near 77. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 50%.

    High: 77 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 61. Northeast wind around 5 mph.

    Low: 61 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 76. East wind 5 to 10 mph.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 62. East wind 5 to 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: 62 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 78. Southeast wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 78 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. Chance of precipitation is 70%.

    Low: 67 °F

    Showers
    Likely

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 64. Calm wind.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Areas of fog before 10am. Otherwise, partly sunny, with a high near 82. Calm wind becoming southeast around 5 mph in the afternoon.
Wednesday Night
A slight chance of showers before 8pm, then a slight chance of showers after 5am. Mostly cloudy, with a low around 63. East wind around 5 mph becoming calm. Chance of precipitation is 20%.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Cloudy, with a high near 77. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 50%.
Thursday Night
Mostly cloudy, with a low around 61. Northeast wind around 5 mph.
Friday
Mostly sunny, with a high near 76. East wind 5 to 10 mph.
Friday Night
A slight chance of showers, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 62. East wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 78. Southeast wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. Chance of precipitation is 70%.
Sunday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 80.
Sunday Night
Partly cloudy, with a low around 62.
Monday
Mostly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
Mostly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mukwonago WI
 42.86°N 88.31°W (Elev. 787 ft)
Last Update:
8:47 pm CDT Aug 11, 2026
Forecast Valid:
10pm CDT Aug 11, 2026-6pm CDT Aug 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation