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

Heavy lake effect snow will continue in the Great Lakes into Wednesday before another storm brings a widespread general snow followed by another round of heavy lake effect snow. A wide-ranging winter storm will produce great swaths of heavy snow, sleet, and treacherous freezing rain from the southern Rockies/Plains and Mid-South starting Friday and shifting toward the East Coast through Sunday. Read More >

Current conditions at

Burlington Municipal Airport (KBUU)

Lat: 42.69°NLon: 88.31°WElev: 778ft.

Fair

N/A

Humidity NA
Wind Speed SW 9 mph
Barometer 30.25 in
Dewpoint N/A
Visibility 10.00 mi
Last update 20 Jan 2:35 pm CST
Extended Forecast for

Williams Bay WI

Extreme Cold Watch January 23, 12:00am until January 24, 12:00pm
Winter Weather Advisory January 20, 09:00pm until January 21, 06:00am
Click here for hazard details and duration
Extreme Cold Watch
Winter Weather Advisory
  • This Afternoon

    This Afternoon: Partly sunny, with a high near 14. South wind 5 to 10 mph.

    High: 14 °F

    Partly Sunny

  • Tonight

    Tonight: Snow, mainly after 9pm. The snow could be heavy at times.  Low around 11. South wind around 5 mph becoming west after midnight.  Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 11 °F

    Heavy Snow

  • Wednesday

    Wednesday: A 50 percent chance of snow, mainly after 5pm.  Mostly cloudy, with a high near 24. West wind 5 to 15 mph.

    High: 24 °F

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before 9pm.  Mostly cloudy, with a low around 6. Wind chill values between -10 and zero. West wind 10 to 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 6 °F

    Snow Likely
    then Mostly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 15. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 15 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -15. Northwest wind 10 to 15 mph.

    Low: -15 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near -7. Northwest wind 5 to 10 mph.

    High: -7 °F

    Cold

  • Friday Night

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

    Low: -16 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after noon.  Mostly cloudy and cold, with a high near 1.

    High: 1 °F

    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

This Afternoon
Partly sunny, with a high near 14. South wind 5 to 10 mph.
Tonight
Snow, mainly after 9pm. The snow could be heavy at times. Low around 11. South wind around 5 mph becoming west after midnight. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Wednesday
A 50 percent chance of snow, mainly after 5pm. Mostly cloudy, with a high near 24. West wind 5 to 15 mph.
Wednesday Night
Snow likely, mainly before 9pm. Mostly cloudy, with a low around 6. Wind chill values between -10 and zero. West wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Thursday
Mostly sunny, with a high near 15. West wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around -15. Northwest wind 10 to 15 mph.
Friday
Mostly sunny and cold, with a high near -7. Northwest wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around -16. Northwest wind around 5 mph.
Saturday
A 20 percent chance of snow after noon. Mostly cloudy and cold, with a high near 1.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around -6.
Sunday
A 20 percent chance of snow. Partly sunny and cold, with a high near 9.
Sunday Night
A 20 percent chance of snow. Mostly cloudy, with a low around -5.
Monday
Mostly sunny, with a high near 11.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Williams Bay WI
 42.59°N 88.54°W (Elev. 915 ft)
2:47 pm CST Jan 20, 2026
2pm CST Jan 20, 2026-6pm CST Jan 26, 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