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

Watertown (KRYV)

Lat: 43.17°NLon: 88.72°WElev: 814ft.

Overcast

9°F

-13°C

Humidity 62%
Wind Speed NW 17 G 25 mph
Barometer 29.84 in
Dewpoint -2°F (-19°C)
Visibility 7.00 mi
Wind Chill-9°F (-23°C)
Last update 19 Jan 1:15 am CST
Extended Forecast for

4 Miles N Sullivan WI

Winter Weather Advisory January 19, 01:33am until January 19, 12:00pm
Cold Weather Advisory January 19, 03:00am until January 19, 12:00pm
Click here for hazard details and duration
Winter Weather Advisory
Cold Weather Advisory
  •  
    Winter Weather Advisory January 19, 01:33am until January 19, 12:00pm

    NOW until 12:00pm Mon

    Winter Weather Advisory

  • Overnight

    Low: -3 °F

    Snow Showers
    Likely and
    Patchy
    Blowing Snow

  • M.L.King Day

    M.L.King Day: Isolated snow showers before 7am, then scattered flurries between 7am and 8am.  Patchy blowing snow before 3pm. Partly sunny and cold, with a high near 2. Wind chill values between -20 and -25. Breezy, with a west wind 15 to 20 mph, with gusts as high as 40 mph.  Chance of precipitation is 20%.

    High: 2 °F

    Isolated Snow
    Showers and
    Patchy
    Blowing Snow

  • Monday Night

    Monday Night: Partly cloudy, with a low around -5. Wind chill values between -15 and -20. West wind 5 to 15 mph.

    Low: -5 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 13. Wind chill values between -5 and -15. West wind 5 to 10 mph.

    High: 13 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after midnight.  Mostly cloudy, with a temperature rising to around 16 by 3am. South wind around 5 mph becoming calm.  Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 10 °F

    Chance Snow
    then Snow
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of snow, mainly before noon.  Mostly cloudy, with a high near 22. West wind 5 to 10 mph.

    High: 22 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow before midnight.  Mostly cloudy, with a low around 3. West wind around 10 mph.

    Low: 3 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 12. West wind 10 to 15 mph.

    High: 12 °F

    Mostly Sunny

Detailed Forecast

Overnight
Snow showers likely, mainly before 2am. Patchy blowing snow after 2am. Cloudy, with a low around -3. Wind chill values between -15 and -25. Breezy, with a west wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.
M.L.King Day
Isolated snow showers before 7am, then scattered flurries between 7am and 8am. Patchy blowing snow before 3pm. Partly sunny and cold, with a high near 2. Wind chill values between -20 and -25. Breezy, with a west wind 15 to 20 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around -5. Wind chill values between -15 and -20. West wind 5 to 15 mph.
Tuesday
Sunny, with a high near 13. Wind chill values between -5 and -15. West wind 5 to 10 mph.
Tuesday Night
Snow likely, mainly after midnight. Mostly cloudy, with a temperature rising to around 16 by 3am. South wind around 5 mph becoming calm. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Wednesday
A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 22. West wind 5 to 10 mph.
Wednesday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 3. West wind around 10 mph.
Thursday
Mostly sunny, with a high near 12. West wind 10 to 15 mph.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around -2.
Friday
A 20 percent chance of snow. Partly sunny and cold, with a high near 10.
Friday Night
A 20 percent chance of snow. Partly cloudy, with a low around -9.
Saturday
A 20 percent chance of snow. Mostly sunny and cold, with a high near 3.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around -12.
Sunday
A 30 percent chance of snow. Partly sunny and cold, with a high near 7.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Sullivan WI
 43.07°N 88.6°W (Elev. 850 ft)
1:22 am CST Jan 19, 2026
1am 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