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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Hazardous Weather Conditions

Current conditions at

East Troy Municipal Airport (K57C)

Lat: 42.8°NLon: 88.37°WElev: 860ft.

Mostly Cloudy

41°F

5°C

Humidity 72%
Wind Speed NW 9 mph
Barometer 29.99 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 9 Jan 12:35 pm CST
Extended Forecast for

Mukwonago WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 41. Northwest wind 10 to 15 mph decreasing to 5 to 10 mph. Winds could gust as high as 25 mph.

    High: 41 °F

    Mostly Sunny

  • Tonight

    Tonight: Snow likely, mainly after 5am. Increasing clouds, with a low around 29. Northwest wind around 5 mph becoming calm. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Partly Cloudy
    then Snow
    Likely

  • Saturday

    Saturday: Snow, mainly before noon. High near 34. Light and variable wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 34 °F

    Snow then
    Chance Snow

  • Saturday Night

    Saturday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 21. Blustery, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 21 °F

    Chance Snow
    and Blustery

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 31. Blustery, with a northwest wind 15 to 20 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 31 °F

    Partly Sunny
    and Blustery
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 23. Southwest wind 5 to 10 mph.

    Low: 23 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40. West wind around 10 mph.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32. Southwest wind 10 to 15 mph.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 43.

    High: 43 °F

    Chance Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 41. Northwest wind 10 to 15 mph decreasing to 5 to 10 mph. Winds could gust as high as 25 mph.
Tonight
Snow likely, mainly after 5am. Increasing clouds, with a low around 29. Northwest wind around 5 mph becoming calm. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday
Snow, mainly before noon. High near 34. Light and variable wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 21. Blustery, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 31. Blustery, with a northwest wind 15 to 20 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 23. Southwest wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 40. West wind around 10 mph.
Monday Night
Mostly cloudy, with a low around 32. Southwest wind 10 to 15 mph.
Tuesday
A 40 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 43.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Wednesday
A 30 percent chance of snow. Mostly cloudy, with a high near 32.
Wednesday Night
Mostly cloudy, with a low around 16.
Thursday
Mostly sunny, with a high near 30.
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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:
12:09 pm CST Jan 9, 2026
Forecast Valid:
12pm CST Jan 9, 2026-6pm CST Jan 15, 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