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

21°F

-6°C

Humidity 36%
Wind Speed SW 10 mph
Barometer 30.05 in (1020.1 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 17 Mar 4:55 pm CDT
Extended Forecast for

Warrens WI

  • Tonight

    Tonight: Snow before 5am, then a slight chance of snow and freezing rain. Low around 14. South wind 6 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. Total nighttime snow accumulation of 1 to 3 inches possible.

    Low: 14 °F

    Snow then
    Wintry Mix

  • Wednesday

    Wednesday: Partly sunny, with a high near 43. South wind around 6 mph becoming west in the afternoon.

    High: 43 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 29. Light southwest wind. New precipitation amounts of less than a tenth of an inch possible.

    Low: 29 °F

    Chance Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 48. Light and variable wind.

    High: 48 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31. Light south wind.

    Low: 31 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 54. Southwest wind 5 to 7 mph becoming northwest in the afternoon.

    High: 54 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 32. North wind around 5 mph becoming south after midnight.

    Low: 32 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 63. South wind 5 to 9 mph, with gusts as high as 18 mph.

    High: 63 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 35. Southwest wind around 9 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 35 °F

    Mostly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Tonight
Snow before 5am, then a slight chance of snow and freezing rain. Low around 14. South wind 6 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. Total nighttime snow accumulation of 1 to 3 inches possible.
Wednesday
Partly sunny, with a high near 43. South wind around 6 mph becoming west in the afternoon.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 29. Light southwest wind. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Mostly sunny, with a high near 48. Light and variable wind.
Thursday Night
Mostly cloudy, with a low around 31. Light south wind.
Friday
Partly sunny, with a high near 54. Southwest wind 5 to 7 mph becoming northwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 32. North wind around 5 mph becoming south after midnight.
Saturday
Mostly sunny, with a high near 63. South wind 5 to 9 mph, with gusts as high as 18 mph.
Saturday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 35. Southwest wind around 9 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Sunday
Mostly sunny, with a high near 51. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 22. North wind 6 to 8 mph.
Monday
Mostly sunny, with a high near 43. Northeast wind 6 to 8 mph becoming south in the afternoon.
Monday Night
Mostly cloudy, with a low around 24. South wind around 6 mph.
Tuesday
Mostly cloudy, with a high near 48. South wind 6 to 9 mph, with gusts as high as 18 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:
3:49 pm CDT Mar 17, 2026
Forecast Valid:
5pm CDT Mar 17, 2026-6pm CDT Mar 24, 2026
 
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Additional Resources

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Chance of Precipitation