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

39°F

4°C

Humidity 74%
Wind Speed SW 6 mph
Barometer 29.52 in (1000.8 mb)
Dewpoint 32°F (0°C)
Visibility 9.00 mi
Wind Chill35°F (2°C)
Last update 13 Jan 7:55 am CST
Extended Forecast for

Warrens WI

  • Today

    Today: A slight chance of sprinkles between 1pm and 3pm, then a slight chance of rain after 3pm. Increasing clouds, with a high near 44. Breezy, with a west wind 13 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 44 °F

    Mostly Sunny
    then Slight
    Chance Rain
    and Breezy

  • Tonight

    Tonight: A slight chance of rain showers and flurries before 9pm, then a slight chance of flurries between 9pm and 3am. Mostly cloudy, with a low around 15. Blustery, with a north wind 14 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    Low: 15 °F

    Slight Chance
    Rain/Flurries
    and Blustery

  • Wednesday

    Wednesday: Mostly sunny, with a high near 20. Wind chill values as low as -1. Blustery, with a north wind 13 to 17 mph, with gusts as high as 31 mph.

    High: 20 °F

    Mostly Sunny
    and Blustery

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 4. Northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 21 mph.

    Low: 4 °F

    Mostly Clear

  • Thursday

    Thursday: A 50 percent chance of snow after noon. Partly sunny, with a high near 27. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph. New snow accumulation of less than a half inch possible.

    High: 27 °F

    Mostly Sunny
    then Chance
    Snow

  • Thursday Night

    Thursday Night: Snow. Low around 19. South wind 7 to 9 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 19 °F

    Snow

  • Friday

    Friday: Snow. High near 31. Northwest wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.

    High: 31 °F

    Snow

  • Friday Night

    Friday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 6. Northwest wind 10 to 13 mph, with gusts as high as 24 mph.

    Low: 6 °F

    Chance Snow

  • Saturday

    Saturday: A 30 percent chance of snow. Mostly cloudy, with a high near 14. Northwest wind around 11 mph, with gusts as high as 21 mph.

    High: 14 °F

    Chance Snow

Detailed Forecast

Today
A slight chance of sprinkles between 1pm and 3pm, then a slight chance of rain after 3pm. Increasing clouds, with a high near 44. Breezy, with a west wind 13 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Tonight
A slight chance of rain showers and flurries before 9pm, then a slight chance of flurries between 9pm and 3am. Mostly cloudy, with a low around 15. Blustery, with a north wind 14 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 20. Wind chill values as low as -1. Blustery, with a north wind 13 to 17 mph, with gusts as high as 31 mph.
Wednesday Night
Mostly clear, with a low around 4. Northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 21 mph.
Thursday
A 50 percent chance of snow after noon. Partly sunny, with a high near 27. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph. New snow accumulation of less than a half inch possible.
Thursday Night
Snow. Low around 19. South wind 7 to 9 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Friday
Snow. High near 31. Northwest wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 6. Northwest wind 10 to 13 mph, with gusts as high as 24 mph.
Saturday
A 30 percent chance of snow. Mostly cloudy, with a high near 14. Northwest wind around 11 mph, with gusts as high as 21 mph.
Saturday Night
Mostly cloudy, with a low around -1. Northwest wind 7 to 9 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 13. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around -2. West wind around 8 mph, with gusts as high as 20 mph.
M.L.King Day
Partly sunny, with a high near 15. West wind 8 to 11 mph, with gusts as high as 21 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:
8:02 am CST Jan 13, 2026
Forecast Valid:
8am CST Jan 13, 2026-6pm CST Jan 19, 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