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

Watertown (KRYV)

Lat: 43.17°NLon: 88.72°WElev: 814ft.

Overcast

21°F

-6°C

Humidity 72%
Wind Speed SW 10 mph
Barometer 29.86 in
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 21 Jan 12:15 pm CST
Extended Forecast for

4 Miles W Fort Atkinson 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: Snow likely, mainly after 5pm.  Mostly cloudy, with a high near 24. West wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 70%. Total daytime snow accumulation of less than one inch possible.

    High: 24 °F

    Snow Likely

  • Tonight

    Tonight: Snow, mainly before 9pm.  Patchy blowing snow before 3am. Low around 5. Wind chill values between -5 and 5. West wind 10 to 15 mph, with gusts as high as 35 mph.  Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 5 °F

    Snow and
    Patchy
    Blowing Snow
    then Patchy
    Blowing Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 17. Wind chill values between -10 and zero. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 17 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -16. Wind chill values between -25 and -35. Northwest 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 10 to 15 mph, with gusts as high as 30 mph.

    High: -7 °F

    Cold

  • Friday Night

    Friday Night: Partly cloudy, with a low around -18. Northwest wind around 5 mph becoming calm  after midnight.

    Low: -18 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny and cold, with a high near -2. Calm wind becoming northwest around 5 mph.

    High: -2 °F

    Cold

  • Saturday Night

    Saturday Night: A 30 percent chance of snow, mainly after midnight.  Mostly cloudy, with a low around -10. Calm wind becoming north around 5 mph.

    Low: -10 °F

    Chance Snow

  • Sunday

    Sunday: A 20 percent chance of snow.  Partly sunny and cold, with a high near 8.

    High: 8 °F

    Slight Chance
    Snow

Detailed Forecast

This Afternoon
Snow likely, mainly after 5pm. Mostly cloudy, with a high near 24. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow, mainly before 9pm. Patchy blowing snow before 3am. Low around 5. Wind chill values between -5 and 5. West wind 10 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Thursday
Mostly sunny, with a high near 17. Wind chill values between -10 and zero. West wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around -16. Wind chill values between -25 and -35. Northwest wind around 15 mph, with gusts as high as 30 mph.
Friday
Sunny and cold, with a high near -7. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Friday Night
Partly cloudy, with a low around -18. Northwest wind around 5 mph becoming calm after midnight.
Saturday
Partly sunny and cold, with a high near -2. Calm wind becoming northwest around 5 mph.
Saturday Night
A 30 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around -10. Calm wind becoming north around 5 mph.
Sunday
A 20 percent chance of snow. Partly sunny and cold, with a high near 8.
Sunday Night
Partly cloudy, with a low around -8.
Monday
Sunny, with a high near 12.
Monday Night
Partly cloudy, with a low around 0.
Tuesday
Mostly sunny, with a high near 19.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Fort Atkinson WI
 42.93°N 88.93°W (Elev. 853 ft)
12:08 pm CST Jan 21, 2026
12pm 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