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.

Mostly Cloudy

54°F

12°C

Humidity 59%
Wind Speed Calm
Barometer 29.57 in (1002.0 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 8 Mar 8:55 pm CDT
Extended Forecast for

Warrens WI

  • Tonight

    Tonight: Mostly cloudy, with a low around 44. Breezy, with a southwest wind 13 to 16 mph, with gusts as high as 30 mph.

    Low: 44 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Monday

    Monday: Partly sunny, with a high near 65. West wind 6 to 9 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 65 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35. Calm wind becoming northeast around 6 mph in the evening.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 53. East wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 53 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain showers before 1am, then rain likely, possibly mixed with snow showers between 1am and 4am, then snow showers likely after 4am. Mostly cloudy, with a low around 28. Northeast wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Chance
    Showers then
    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Snow showers likely, mainly before 1pm. Mostly cloudy, with a high near 40. North wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    High: 40 °F

    Snow Showers
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 24. Northwest wind 6 to 13 mph, with gusts as high as 23 mph.

    Low: 24 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of rain and snow showers after 1pm. Mostly sunny, with a high near 45. West wind 5 to 15 mph becoming south in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 20%.

    High: 45 °F

    Sunny then
    Slight Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Rain and snow showers likely. Mostly cloudy, with a low around 26. South wind 11 to 14 mph becoming west after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 70%.

    Low: 26 °F

    Rain/Snow
    Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 44. Breezy, with a southwest wind 13 to 16 mph, with gusts as high as 30 mph.
Monday
Partly sunny, with a high near 65. West wind 6 to 9 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Partly cloudy, with a low around 35. Calm wind becoming northeast around 6 mph in the evening.
Tuesday
Partly sunny, with a high near 53. East wind 7 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
A chance of rain showers before 1am, then rain likely, possibly mixed with snow showers between 1am and 4am, then snow showers likely after 4am. Mostly cloudy, with a low around 28. Northeast wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday
Snow showers likely, mainly before 1pm. Mostly cloudy, with a high near 40. North wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
Partly cloudy, with a low around 24. Northwest wind 6 to 13 mph, with gusts as high as 23 mph.
Thursday
A slight chance of rain and snow showers after 1pm. Mostly sunny, with a high near 45. West wind 5 to 15 mph becoming south in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 20%.
Thursday Night
Rain and snow showers likely. Mostly cloudy, with a low around 26. South wind 11 to 14 mph becoming west after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 70%.
Friday
A 20 percent chance of snow showers before 1pm. Partly sunny, with a high near 41. Breezy, with a northwest wind 14 to 16 mph, with gusts as high as 28 mph.
Friday Night
Partly cloudy, with a low around 21. Northwest wind 5 to 8 mph, with gusts as high as 20 mph.
Saturday
A 20 percent chance of snow showers. Partly sunny, with a high near 41. West wind 5 to 7 mph becoming south in the afternoon.
Saturday Night
A 40 percent chance of snow showers. Mostly cloudy, with a low around 23. Southeast wind 5 to 7 mph.
Sunday
A 50 percent chance of snow showers. Cloudy, with a high near 37. East wind 8 to 11 mph becoming north in the afternoon. Winds could gust as high as 23 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:
6:31 pm CDT Mar 8, 2026
Forecast Valid:
9pm CDT Mar 8, 2026-6pm CDT Mar 15, 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