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Heavy Rain in the Southern Appalachians; Fire Weather and Heat in the West; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding today. Gusty winds and low relative humidity will bring critical fire weather conditions to parts of the Great Basin and northern Rockies today and Thursday. Hot to extremely hot temperatures are in place through today across parts of the western U.S. Read More >

Hazardous Weather Conditions

Current conditions at

East Troy Municipal Airport (K57C)

Lat: 42.8°NLon: 88.37°WElev: 860ft.

Fair

66°F

19°C

Humidity 92%
Wind Speed NW 3 mph
Barometer 29.97 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 13 Aug 7:35 am CDT
Extended Forecast for

Mukwonago WI

  • Today

    Today: Sunny, with a high near 81. North wind around 5 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. North wind around 5 mph becoming calm.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79. Calm wind becoming east around 5 mph in the afternoon.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. East wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85. Calm wind becoming south around 5 mph in the morning.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 66. South wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. Southwest wind 5 to 10 mph.

    High: 88 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Southwest wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 82.

    High: 82 °F

    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 81. North wind around 5 mph.
Tonight
Mostly clear, with a low around 60. North wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 79. Calm wind becoming east around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 60. East wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 85. Calm wind becoming south around 5 mph in the morning.
Friday Night
Mostly clear, with a low around 66. South wind around 5 mph becoming calm in the evening.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. Southwest wind 5 to 10 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Southwest wind around 5 mph becoming calm in the evening.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 82.
Sunday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 74.
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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:
6:59 am CDT Aug 13, 2025
Forecast Valid:
8am CDT Aug 13, 2025-6pm CDT Aug 19, 2025
 
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