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

13°F

-11°C

Humidity 93%
Wind Speed Calm
Barometer 30.05 in (1019.9 mb)
Dewpoint 12°F (-11°C)
Visibility 8.00 mi
Last update 1 Dec 6:55 pm CST
Extended Forecast for

3 Miles SW Warrens WI

  • Tonight

    Tonight: A slight chance of snow before 8pm, then a chance of flurries between 8pm and 9pm. Mostly cloudy, with a low around 8. Calm wind. Chance of precipitation is 20%.

    Low: 8 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 25. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 25 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow after midnight. Cloudy, with a temperature rising to around 23 by 5am. Southwest wind around 7 mph. New snow accumulation of less than a half inch possible.

    Low: 20 °F⇑

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday

    Wednesday: A 30 percent chance of snow before noon. Cloudy, then gradually becoming mostly sunny, with a high near 26. Northwest wind 7 to 13 mph, with gusts as high as 21 mph.

    High: 26 °F

    Chance Snow
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around -7. Northwest wind 5 to 9 mph, with gusts as high as 20 mph.

    Low: -7 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 12. Light and variable wind becoming southwest 5 to 7 mph in the afternoon.

    High: 12 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 1. South wind 6 to 9 mph, with gusts as high as 20 mph.

    Low: 1 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Friday

    Friday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 26. Southwest wind around 8 mph.

    High: 26 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 10. Southwest wind around 6 mph becoming northwest after midnight.

    Low: 10 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Tonight
A slight chance of snow before 8pm, then a chance of flurries between 8pm and 9pm. Mostly cloudy, with a low around 8. Calm wind. Chance of precipitation is 20%.
Tuesday
Mostly cloudy, with a high near 25. Calm wind becoming southwest 5 to 8 mph in the morning.
Tuesday Night
A 40 percent chance of snow after midnight. Cloudy, with a temperature rising to around 23 by 5am. Southwest wind around 7 mph. New snow accumulation of less than a half inch possible.
Wednesday
A 30 percent chance of snow before noon. Cloudy, then gradually becoming mostly sunny, with a high near 26. Northwest wind 7 to 13 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly clear, with a low around -7. Northwest wind 5 to 9 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 12. Light and variable wind becoming southwest 5 to 7 mph in the afternoon.
Thursday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 1. South wind 6 to 9 mph, with gusts as high as 20 mph.
Friday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 26. Southwest wind around 8 mph.
Friday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 10. Southwest wind around 6 mph becoming northwest after midnight.
Saturday
A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 24. Northwest wind around 6 mph.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 3. North wind 3 to 5 mph.
Sunday
Partly sunny, with a high near 18. North wind 5 to 7 mph.
Sunday Night
Mostly cloudy, with a low around -2. Light and variable wind.
Monday
A 20 percent chance of snow. Mostly cloudy, with a high near 23. Calm wind becoming south 5 to 7 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Warrens WI
 44.09°N 90.54°W
Last Update:
4:41 pm CST Dec 1, 2025
Forecast Valid:
7pm CST Dec 1, 2025-6pm CST Dec 8, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation