National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Overcast

33°F

1°C

Humidity 91%
Wind Speed Calm
Barometer 29.79 in (1009.6 mb)
Dewpoint 31°F (-1°C)
Visibility 8.00 mi
Last update 11 Mar 3:55 am CDT
Extended Forecast for

Warrens WI

Winter Weather Advisory March 11, 04:07am until March 11, 01:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory March 11, 04:07am until March 11, 01:00pm

    NOW until 1:00pm Wed

    Winter Weather Advisory

  • Overnight

    Low: 32 °F

    Areas Wintry
    Mix

  • Wednesday

    Wednesday: Drizzle, snow, and freezing rain, becoming all snow after 9am, then gradually ending. High near 40. Northwest wind 9 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. New snow accumulation of around an inch possible.

    High: 40 °F

    Wintry Mix
    then Snow

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 22. Northwest wind 3 to 8 mph. Winds could gust as high as 21 mph.

    Low: 22 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of rain and snow showers between 1pm and 4pm, then a chance of rain showers after 4pm. Increasing clouds, with a high near 44. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    High: 44 °F

    Sunny then
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Rain showers before 1am, then rain likely, possibly mixed with snow showers between 1am and 4am, then snow showers likely after 4am. Low around 28. Breezy, with a south wind 11 to 16 mph becoming west 18 to 23 mph after midnight. Winds could gust as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Breezy.
    Showers then
    Rain/Snow

  • Friday

    Friday: Snow showers likely before 7am. Partly sunny, with a high near 39. Windy, with a northwest wind 20 to 26 mph, with gusts as high as 41 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Snow Showers
    Likely and
    Windy then
    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 19. Northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 21 mph.

    Low: 19 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of snow after 1pm. Mostly cloudy, with a high near 39. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 39 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Overnight
Areas of drizzle, snow, and freezing rain. Mostly cloudy, with a steady temperature around 32. North wind around 8 mph, with gusts as high as 18 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday
Drizzle, snow, and freezing rain, becoming all snow after 9am, then gradually ending. High near 40. Northwest wind 9 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. New snow accumulation of around an inch possible.
Wednesday Night
Mostly clear, with a low around 22. Northwest wind 3 to 8 mph. Winds could gust as high as 21 mph.
Thursday
A chance of rain and snow showers between 1pm and 4pm, then a chance of rain showers after 4pm. Increasing clouds, with a high near 44. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Thursday Night
Rain showers before 1am, then rain likely, possibly mixed with snow showers between 1am and 4am, then snow showers likely after 4am. Low around 28. Breezy, with a south wind 11 to 16 mph becoming west 18 to 23 mph after midnight. Winds could gust as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Friday
Snow showers likely before 7am. Partly sunny, with a high near 39. Windy, with a northwest wind 20 to 26 mph, with gusts as high as 41 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday Night
Mostly cloudy, with a low around 19. Northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 21 mph.
Saturday
A 30 percent chance of snow after 1pm. Mostly cloudy, with a high near 39. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Saturday Night
Snow likely. Cloudy, with a low around 24. East wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Sunday
Snow. High near 34. Breezy, with a northeast wind 15 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 11. Blustery, with a northwest wind 16 to 18 mph, with gusts as high as 32 mph.
Monday
Partly sunny, with a high near 25. Blustery, with a northwest wind around 16 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around 4. Northwest wind 5 to 10 mph, with gusts as high as 21 mph.
Tuesday
Mostly sunny, with a high near 28. Southwest wind 3 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Warrens WI
 44.14°N 90.51°W
Last Update:
2:52 am CDT Mar 11, 2026
Forecast Valid:
4am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
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Additional Resources

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Chance of Precipitation