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

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Overcast

51°F

11°C

Humidity 70%
Wind Speed Calm
Barometer 29.97 in (1015.8 mb)
Dewpoint 41°F (5°C)
Visibility 9.00 mi
Last update 5 Mar 3:55 pm CST
Extended Forecast for

Warrens WI

  • Tonight

    Tonight: Cloudy, with a low around 37. Southeast wind 5 to 7 mph.

    Low: 37 °F

    Cloudy

  • Friday

    Friday: Showers, with thunderstorms also possible after 3pm. High near 62. Southeast wind 7 to 9 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 62 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 3am, then showers likely. Low around 39. South wind 6 to 14 mph becoming west after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 39 °F

    Showers

  • Saturday

    Saturday: A 20 percent chance of showers before noon. Partly sunny, with a high near 42. West wind 6 to 15 mph, with gusts as high as 26 mph.

    High: 42 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29. Southwest wind 5 to 11 mph, with gusts as high as 24 mph.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 62. Southwest wind 11 to 15 mph, with gusts as high as 28 mph.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43. Southwest wind around 11 mph, with gusts as high as 26 mph.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 62. Southwest wind 7 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.

    High: 62 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35. Northwest wind 5 to 8 mph becoming east after midnight. Winds could gust as high as 18 mph.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 37. Southeast wind 5 to 7 mph.
Friday
Showers, with thunderstorms also possible after 3pm. High near 62. Southeast wind 7 to 9 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers and possibly a thunderstorm before 3am, then showers likely. Low around 39. South wind 6 to 14 mph becoming west after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 20 percent chance of showers before noon. Partly sunny, with a high near 42. West wind 6 to 15 mph, with gusts as high as 26 mph.
Saturday Night
Mostly clear, with a low around 29. Southwest wind 5 to 11 mph, with gusts as high as 24 mph.
Sunday
Sunny, with a high near 62. Southwest wind 11 to 15 mph, with gusts as high as 28 mph.
Sunday Night
Partly cloudy, with a low around 43. Southwest wind around 11 mph, with gusts as high as 26 mph.
Monday
Mostly sunny, with a high near 62. Southwest wind 7 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.
Monday Night
Partly cloudy, with a low around 35. Northwest wind 5 to 8 mph becoming east after midnight. Winds could gust as high as 18 mph.
Tuesday
A 40 percent chance of showers, mainly after noon. Partly sunny, with a high near 60. East wind 8 to 11 mph becoming west in the afternoon. Winds could gust as high as 22 mph.
Tuesday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 29. Northwest wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Wednesday
A chance of rain and snow showers. Partly sunny, with a high near 45. Northwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 22. Northwest wind 5 to 9 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Thursday
Mostly sunny, with a high near 45. South wind 5 to 11 mph, with gusts as high as 22 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:
1:52 pm CST Mar 5, 2026
Forecast Valid:
4pm CST Mar 5, 2026-6pm CDT Mar 12, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation