Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

East Troy Municipal Airport (K57C)

Lat: 42.8°NLon: 88.37°WElev: 860ft.

Fair and Breezy

-1°F

-18°C

Humidity 58%
Wind Speed W 21 G 26 mph
Barometer 30.17 in
Dewpoint -12°F (-24°C)
Visibility 10.00 mi
Wind Chill-24°F (-31°C)
Last update 19 Jan 11:35 am CST
Extended Forecast for

4 Miles SE Mukwonago WI

Winter Weather Advisory January 19, 11:46am until January 19, 12:00pm
Cold Weather Advisory January 19, 11:46am until January 19, 12:00pm
Click here for hazard details and duration
Winter Weather Advisory
Cold Weather Advisory
  •  
    Winter Weather Advisory January 19, 11:46am until January 19, 12:00pm
    Cold Weather Advisory January 19, 11:46am until January 19, 12:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • M.L.King Day

    High: 3 °F

    Areas Blowing
    Snow and
    Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around -2. Wind chill values between -10 and -15. West wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: -2 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 14. Wind chill values between -5 and -15. West wind 5 to 15 mph.

    High: 14 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Snow.  Low around 7. Calm wind becoming southwest around 5 mph after midnight.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 7 °F

    Snow Likely
    then Snow

  • Wednesday

    Wednesday: A 30 percent chance of snow, mainly before noon.  Mostly cloudy, with a high near 23. West wind 5 to 15 mph.

    High: 23 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow before midnight.  Mostly cloudy, with a low around 6. West wind 10 to 15 mph.

    Low: 6 °F

    Chance Snow
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 15. West wind 10 to 15 mph.

    High: 15 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow after midnight.  Mostly cloudy, with a low around -8. West wind around 10 mph.

    Low: -8 °F

    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

M.L.King Day
Areas of blowing snow before 3pm. Mostly sunny and cold, with a high near 3. Wind chill values between -15 and -20. Breezy, with a west wind 15 to 20 mph, with gusts as high as 35 mph.
Tonight
Partly cloudy, with a low around -2. Wind chill values between -10 and -15. West wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday
Increasing clouds, with a high near 14. Wind chill values between -5 and -15. West wind 5 to 15 mph.
Tuesday Night
Snow. Low around 7. Calm wind becoming southwest around 5 mph after midnight. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday
A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 23. West wind 5 to 15 mph.
Wednesday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 6. West wind 10 to 15 mph.
Thursday
Mostly sunny, with a high near 15. West wind 10 to 15 mph.
Thursday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around -8. West wind around 10 mph.
Friday
A 20 percent chance of snow after noon. Mostly sunny and cold, with a high near -1.
Friday Night
Partly cloudy, with a low around -18.
Saturday
Mostly sunny and cold, with a high near 1.
Saturday Night
A 20 percent chance of snow. Partly cloudy, with a low around -11.
Sunday
A 30 percent chance of snow. Mostly sunny and cold, with a high near 10.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Mukwonago WI
 42.84°N 88.29°W (Elev. 892 ft)
11:27 am CST Jan 19, 2026
11am CST Jan 19, 2026-6pm CST Jan 25, 2026
 
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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