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

Lone Rock Tri-County Regional Airport (KLNR)

Lat: 43.21°NLon: 90.19°WElev: 712ft.

Light Snow Fog/Mist

24°F

-4°C

Humidity 88%
Wind Speed W 6 mph
Barometer 29.84 in (1011.3 mb)
Dewpoint 21°F (-6°C)
Visibility 1.25 mi
Wind Chill17°F (-8°C)
Last update 21 Jan 4:56 pm CST
Extended Forecast for

4 Miles SSW Spring Green WI

Extreme Cold Watch January 23, 01:00pm until January 24, 12:00pm
Winter Weather Advisory until January 21, 11:00pm
Extreme Cold Warning January 23, 12:00am until January 23, 01:00pm
Click here for hazard details and duration
Extreme Cold Watch
Winter Weather Advisory
Extreme Cold Warning
  •  
    Winter Weather Advisory until January 21, 11:00pm

    NOW until 11:00pm Wed

    Winter Weather Advisory

  • This Afternoon

    High: 25 °F

    Snow

  • Tonight

    Tonight: Snow, mainly before 9pm.  Low around 7. Wind chill values between -5 and zero. West wind 5 to 10 mph increasing to 10 to 15 mph in the evening. Winds could gust as high as 35 mph.  Chance of precipitation is 100%. New snow accumulation of around an inch possible.

    Low: 7 °F

    Snow then
    Partly Cloudy

  • Thursday

    Thursday: A chance of flurries before 2pm, then a slight chance of snow after 2pm.  Partly sunny, with a high near 17. Wind chill values between -10 and zero. Breezy, with a west wind 10 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 20%.

    High: 17 °F

    Partly Sunny
    then Slight
    Chance Snow
    and Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -18. Wind chill values between -25 and -35. Northwest wind around 10 mph, with gusts as high as 30 mph.

    Low: -18 °F

    Partly Cloudy

  • Friday

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

    High: -5 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -15. Northwest wind around 5 mph becoming calm  in the evening.

    Low: -15 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny and cold, with a high near 3. Calm wind becoming north around 5 mph.

    High: 3 °F

    Cold

  • Saturday Night

    Saturday Night: A 30 percent chance of snow, mainly after midnight.  Mostly cloudy, with a low around -7. Calm wind.

    Low: -7 °F

    Chance Snow

Detailed Forecast

This Afternoon
Snow. High near 25. Calm wind. Chance of precipitation is 100%. Total daytime snow accumulation of around an inch possible.
Tonight
Snow, mainly before 9pm. Low around 7. Wind chill values between -5 and zero. West wind 5 to 10 mph increasing to 10 to 15 mph in the evening. Winds could gust as high as 35 mph. Chance of precipitation is 100%. New snow accumulation of around an inch possible.
Thursday
A chance of flurries before 2pm, then a slight chance of snow after 2pm. Partly sunny, with a high near 17. Wind chill values between -10 and zero. Breezy, with a west wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around -18. Wind chill values between -25 and -35. Northwest wind around 10 mph, with gusts as high as 30 mph.
Friday
Sunny and cold, with a high near -5. Northwest wind 5 to 10 mph.
Friday Night
Mostly cloudy, with a low around -15. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Partly sunny and cold, with a high near 3. Calm wind becoming north around 5 mph.
Saturday Night
A 30 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around -7. Calm wind.
Sunday
A 20 percent chance of snow. Partly sunny and cold, with a high near 10.
Sunday Night
Partly cloudy, with a low around -8.
Monday
Mostly sunny and cold, with a high near 9.
Monday Night
Mostly clear, with a low around -2.
Tuesday
Mostly sunny, with a high near 20.
Tuesday Night
Mostly cloudy, with a low around 1.
Wednesday
Partly sunny, with a high near 15.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Spring Green WI
 43.13°N 90.11°W (Elev. 814 ft)
5:01 pm CST Jan 21, 2026
5pm CST Jan 21, 2026-6pm CST Jan 28, 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