Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

East Troy Municipal Airport (K57C)

Lat: 42.8°NLon: 88.37°WElev: 860ft.

Mostly Cloudy

19°F

-7°C

Humidity 76%
Wind Speed W 15 G 21 mph
Barometer 29.86 in
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill5°F (-15°C)
Last update 21 Jan 12:55 pm CST
Extended Forecast for

5 Miles NNW Elkhorn WI

Extreme Cold Watch January 23, 12:00am until January 24, 12:00pm
Click here for hazard details and duration
Extreme Cold Watch
  • This Afternoon

    This Afternoon: A 50 percent chance of snow, mainly after 5pm.  Mostly cloudy, with a high near 25. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 25 °F

    Chance Snow

  • Tonight

    Tonight: Snow, mainly before 9pm. The snow could be heavy at times.  Patchy blowing snow between midnight and 1am. Low around 7. Wind chill values between -5 and zero. Breezy, with a west wind 10 to 20 mph, with gusts as high as 35 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 7 °F

    Heavy Snow
    and Patchy
    Blowing Snow

  • Thursday

    Thursday: A chance of flurries between 9am and 3pm, then a slight chance of snow after 3pm.  Mostly sunny, with a high near 18. Wind chill values between -5 and 5. West wind 10 to 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 20%.

    High: 18 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -16. Wind chill values between -25 and -35. West wind around 15 mph, with gusts as high as 30 mph.

    Low: -16 °F

    Partly Cloudy

  • Friday

    Friday: Sunny and cold, with a high near -7. Northwest wind 5 to 15 mph, with gusts as high as 30 mph.

    High: -7 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -16. Northwest wind around 5 mph.

    Low: -16 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of snow after noon.  Mostly cloudy and cold, with a high near 3. North wind around 5 mph.

    High: 3 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday Night

    Saturday Night: A 50 percent chance of snow.  Mostly cloudy, with a low around -3. Calm wind becoming north around 5 mph after midnight.

    Low: -3 °F

    Chance Snow

  • Sunday

    Sunday: A 40 percent chance of snow.  Mostly cloudy, with a high near 11.

    High: 11 °F

    Chance Snow

Detailed Forecast

This Afternoon
A 50 percent chance of snow, mainly after 5pm. Mostly cloudy, with a high near 25. West wind 10 to 15 mph, with gusts as high as 30 mph.
Tonight
Snow, mainly before 9pm. The snow could be heavy at times. Patchy blowing snow between midnight and 1am. Low around 7. Wind chill values between -5 and zero. Breezy, with a west wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Thursday
A chance of flurries between 9am and 3pm, then a slight chance of snow after 3pm. Mostly sunny, with a high near 18. Wind chill values between -5 and 5. West wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around -16. Wind chill values between -25 and -35. West wind around 15 mph, with gusts as high as 30 mph.
Friday
Sunny and cold, with a high near -7. Northwest wind 5 to 15 mph, with gusts as high as 30 mph.
Friday Night
Mostly cloudy, with a low around -16. Northwest wind around 5 mph.
Saturday
A 30 percent chance of snow after noon. Mostly cloudy and cold, with a high near 3. North wind around 5 mph.
Saturday Night
A 50 percent chance of snow. Mostly cloudy, with a low around -3. Calm wind becoming north around 5 mph after midnight.
Sunday
A 40 percent chance of snow. Mostly cloudy, with a high near 11.
Sunday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around -5.
Monday
Mostly sunny and cold, with a high near 8.
Monday Night
Partly cloudy, with a low around -3.
Tuesday
Mostly sunny, with a high near 17.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Elkhorn WI
 42.74°N 88.59°W (Elev. 948 ft)
12:52 pm CST Jan 21, 2026
1pm CST Jan 21, 2026-6pm CST Jan 27, 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