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

46°F

8°C

Humidity 36%
Wind Speed W 8 mph
Barometer 30.31 in
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 20 Apr 12:10 pm CDT
Extended Forecast for

Mukwonago WI

  • This Afternoon

    This Afternoon: Sunny, with a high near 53. Southwest wind 5 to 10 mph.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 42. South wind 5 to 10 mph.

    Low: 42 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72. Southwest wind 5 to 10 mph.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42. West wind around 5 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 69. Northeast wind around 5 mph becoming southeast in the afternoon.

    High: 69 °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, with gusts as high as 25 mph.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 59. South wind around 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: A 50 percent chance of showers. Mostly cloudy, with a high near 71.

    High: 71 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 53. Southwest wind 5 to 10 mph.
Tonight
Mostly cloudy, with a low around 42. South wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 72. Southwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 42. West wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 69. Northeast wind around 5 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, with gusts as high as 25 mph.
Thursday Night
A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 59. South wind around 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 71.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 41.
Sunday
Partly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mukwonago WI
 42.86°N 88.34°W (Elev. 791 ft)
Last Update:
12:04 pm CDT Apr 20, 2026
Forecast Valid:
12pm CDT Apr 20, 2026-6pm CDT Apr 26, 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