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.

Fair

26°F

-3°C

Humidity 79%
Wind Speed SW 7 mph
Barometer 30.14 in (1022.2 mb)
Dewpoint 20°F (-7°C)
Visibility 9.00 mi
Wind Chill18°F (-8°C)
Last update 11 Jan 9:55 pm CST
Extended Forecast for

Warrens WI

  • Tonight

    Tonight: Partly cloudy, with a low around 21. West wind 8 to 13 mph, with gusts as high as 28 mph.

    Low: 21 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 41. West wind 7 to 9 mph, with gusts as high as 21 mph.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 28. Southwest wind 3 to 7 mph. Winds could gust as high as 18 mph.

    Low: 28 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 30 percent chance of rain. Mostly cloudy, with a high near 43. Breezy, with a west wind 11 to 17 mph, with gusts as high as 28 mph.

    High: 43 °F

    Chance Rain
    and Breezy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 20. Blustery, with a west wind 14 to 18 mph, with gusts as high as 34 mph.

    Low: 20 °F

    Cloudy then
    Chance Snow
    and Blustery

  • Wednesday

    Wednesday: A 30 percent chance of snow before noon. Partly sunny, with a high near 27. Blustery, with a north wind 15 to 21 mph, with gusts as high as 37 mph.

    High: 27 °F

    Blustery.
    Chance Snow
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 7. North wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 23 mph.

    Low: 7 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of snow after noon. Partly sunny, with a high near 26. Calm wind becoming south around 6 mph in the morning.

    High: 26 °F

    Mostly Sunny
    then Chance
    Snow

  • Thursday Night

    Thursday Night: Snow likely. Mostly cloudy, with a low around 18. South wind around 6 mph. Chance of precipitation is 60%.

    Low: 18 °F

    Snow Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 21. West wind 8 to 13 mph, with gusts as high as 28 mph.
Monday
Mostly sunny, with a high near 41. West wind 7 to 9 mph, with gusts as high as 21 mph.
Monday Night
Increasing clouds, with a low around 28. Southwest wind 3 to 7 mph. Winds could gust as high as 18 mph.
Tuesday
A 30 percent chance of rain. Mostly cloudy, with a high near 43. Breezy, with a west wind 11 to 17 mph, with gusts as high as 28 mph.
Tuesday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 20. Blustery, with a west wind 14 to 18 mph, with gusts as high as 34 mph.
Wednesday
A 30 percent chance of snow before noon. Partly sunny, with a high near 27. Blustery, with a north wind 15 to 21 mph, with gusts as high as 37 mph.
Wednesday Night
Partly cloudy, with a low around 7. North wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 23 mph.
Thursday
A 30 percent chance of snow after noon. Partly sunny, with a high near 26. Calm wind becoming south around 6 mph in the morning.
Thursday Night
Snow likely. Mostly cloudy, with a low around 18. South wind around 6 mph. Chance of precipitation is 60%.
Friday
Snow likely. Mostly cloudy, with a high near 29. South wind 6 to 9 mph becoming west in the afternoon. Chance of precipitation is 70%.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 8. Northwest wind around 8 mph.
Saturday
A 20 percent chance of snow. Mostly cloudy, with a high near 19. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 3. West wind around 9 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 20. West wind around 10 mph, with gusts as high as 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Warrens WI
 44.12°N 90.51°W
Last Update:
8:37 pm CST Jan 11, 2026
Forecast Valid:
10pm CST Jan 11, 2026-6pm CST Jan 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation