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

26°F

-3°C

Humidity 96%
Wind Speed Calm
Barometer 30.16 in (1022.7 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 9 Jan 6:55 pm CST
Extended Forecast for

Warrens WI

  • Tonight

    Tonight: A 50 percent chance of snow, mainly after 4am. Mostly cloudy, with a low around 22. Light southwest wind. Total nighttime snow accumulation of less than a half inch possible.

    Low: 22 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: A 50 percent chance of snow. Cloudy, then gradually becoming mostly sunny, with a high near 30. Light west wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 24 mph. New snow accumulation of less than one inch possible.

    High: 30 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 15. Northwest wind around 11 mph, with gusts as high as 25 mph.

    Low: 15 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 28. Northwest wind 7 to 10 mph, with gusts as high as 23 mph.

    High: 28 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 19. Southwest wind around 7 mph, with gusts as high as 20 mph.

    Low: 19 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40. West wind 6 to 8 mph.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 28. Southwest wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 28 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday

    Tuesday: A 40 percent chance of rain. Mostly cloudy, with a high near 42. West wind 8 to 10 mph, with gusts as high as 21 mph.

    High: 42 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 20. West wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 20 °F

    Chance
    Rain/Snow
    then Chance
    Snow

Detailed Forecast

Tonight
A 50 percent chance of snow, mainly after 4am. Mostly cloudy, with a low around 22. Light southwest wind. Total nighttime snow accumulation of less than a half inch possible.
Saturday
A 50 percent chance of snow. Cloudy, then gradually becoming mostly sunny, with a high near 30. Light west wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 24 mph. New snow accumulation of less than one inch possible.
Saturday Night
Mostly cloudy, with a low around 15. Northwest wind around 11 mph, with gusts as high as 25 mph.
Sunday
Partly sunny, with a high near 28. Northwest wind 7 to 10 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 19. Southwest wind around 7 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 40. West wind 6 to 8 mph.
Monday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 28. Southwest wind 6 to 8 mph, with gusts as high as 20 mph.
Tuesday
A 40 percent chance of rain. Mostly cloudy, with a high near 42. West wind 8 to 10 mph, with gusts as high as 21 mph.
Tuesday Night
A chance of rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 20. West wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Wednesday
A 20 percent chance of snow. Partly sunny, with a high near 26. North wind 7 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 11. North wind 3 to 6 mph.
Thursday
A 20 percent chance of snow. Mostly sunny, with a high near 27. Light and variable wind becoming southwest 5 to 7 mph in the morning.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 17. South wind around 6 mph.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 29. Southwest wind 6 to 9 mph becoming west in the afternoon.
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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:
6:41 pm CST Jan 9, 2026
Forecast Valid:
7pm CST Jan 9, 2026-6pm CST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation