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

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

-5°F

-21°C

Humidity 64%
Wind Speed NW 8 G 18 mph
Barometer 30.09 in (1021.8 mb)
Dewpoint -14°F (-26°C)
Visibility 7.00 mi
Wind Chill-20°F (-29°C)
Last update 19 Jan 4:55 am CST
Extended Forecast for

3 Miles SW Warrens WI

Cold Weather Advisory until January 19, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory until January 19, 12:00pm

    NOW until 12:00pm Mon

    Cold Weather Advisory

  • Overnight

    Low: -5 °F

    Patchy
    Blowing Snow
    and Blustery

  • M.L.King Day

    M.L.King Day: Patchy blowing snow before 7am. Partly sunny and cold, with a high near 2. Wind chill values as low as -30. Blustery, with a northwest wind 13 to 18 mph, with gusts as high as 32 mph.

    High: 2 °F

    Patchy
    Blowing Snow
    and Blustery

  • Monday Night

    Monday Night: Mostly cloudy, with a steady temperature around -2. Wind chill values as low as -19. West wind 7 to 13 mph, with gusts as high as 25 mph.

    Low: -2 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 13. Wind chill values as low as -17. West wind 5 to 7 mph becoming light and variable  in the afternoon.

    High: 13 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Snow likely.  Mostly cloudy, with a low around 4. Light south wind.  Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 4 °F

    Snow Likely

  • Wednesday

    Wednesday: Snow likely, mainly after noon.  Mostly cloudy, with a high near 21. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph.  Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 21 °F

    Slight Chance
    Snow then
    Snow Likely

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 0. West wind 8 to 11 mph, with gusts as high as 23 mph.

    Low: 0 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 12. West wind 9 to 11 mph, with gusts as high as 21 mph.

    High: 12 °F

    Partly Sunny

Detailed Forecast

Overnight
Patchy blowing snow. Mostly cloudy, with a steady temperature around -5. Wind chill values as low as -28. Blustery, with a northwest wind around 18 mph, with gusts as high as 33 mph.
M.L.King Day
Patchy blowing snow before 7am. Partly sunny and cold, with a high near 2. Wind chill values as low as -30. Blustery, with a northwest wind 13 to 18 mph, with gusts as high as 32 mph.
Monday Night
Mostly cloudy, with a steady temperature around -2. Wind chill values as low as -19. West wind 7 to 13 mph, with gusts as high as 25 mph.
Tuesday
Increasing clouds, with a high near 13. Wind chill values as low as -17. West wind 5 to 7 mph becoming light and variable in the afternoon.
Tuesday Night
Snow likely. Mostly cloudy, with a low around 4. Light south wind. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Wednesday
Snow likely, mainly after noon. Mostly cloudy, with a high near 21. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Wednesday Night
Mostly cloudy, with a low around 0. West wind 8 to 11 mph, with gusts as high as 23 mph.
Thursday
Partly sunny, with a high near 12. West wind 9 to 11 mph, with gusts as high as 21 mph.
Thursday Night
Mostly cloudy, with a low around -14. Northwest wind around 8 mph, with gusts as high as 18 mph.
Friday
Mostly sunny and cold, with a high near -5. Northwest wind 7 to 10 mph, with gusts as high as 18 mph.
Friday Night
Partly cloudy, with a low around -21. Northwest wind 3 to 6 mph.
Saturday
Sunny and cold, with a high near 0. West wind 3 to 5 mph.
Saturday Night
Partly cloudy, with a low around -14. Light and variable wind.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 11. Southwest wind 3 to 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Warrens WI
 44.09°N 90.54°W
5:21 am CST Jan 19, 2026
5am CST Jan 19, 2026-6pm CST Jan 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database