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.

Overcast

29°F

-2°C

Humidity 91%
Wind Speed Calm
Barometer 29.81 in (1010.9 mb)
Dewpoint 27°F (-3°C)
Visibility 7.00 mi
Last update 3 Dec 4:55 am CST
Extended Forecast for

Warrens WI

  • Overnight

    Overnight: A 20 percent chance of snow. Cloudy, with a steady temperature around 25. West wind around 8 mph, with gusts as high as 20 mph.

    Low: 25 °F

    Slight Chance
    Snow

  • Wednesday

    Wednesday: A slight chance of flurries before 7am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 8 by 5pm. Wind chill values as low as -6. Northwest wind 9 to 13 mph, with gusts as high as 22 mph.

    High: 22 °F⇓

    Slight Chance
    Flurries

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around -11. Wind chill values as low as -20. Northwest wind 5 to 9 mph, with gusts as high as 22 mph.

    Low: -11 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 14. Wind chill values as low as -10. Calm wind becoming south 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 14 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 5. South wind 7 to 10 mph, with gusts as high as 23 mph.

    Low: 5 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Friday

    Friday: A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 27. Southwest wind 6 to 8 mph, with gusts as high as 18 mph.

    High: 27 °F

    Chance Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 12. West wind 3 to 5 mph.

    Low: 12 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 24. West wind 3 to 6 mph.

    High: 24 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 5. Light northeast wind.

    Low: 5 °F

    Chance Snow

Detailed Forecast

Overnight
A 20 percent chance of snow. Cloudy, with a steady temperature around 25. West wind around 8 mph, with gusts as high as 20 mph.
Wednesday
A slight chance of flurries before 7am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 8 by 5pm. Wind chill values as low as -6. Northwest wind 9 to 13 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around -11. Wind chill values as low as -20. Northwest wind 5 to 9 mph, with gusts as high as 22 mph.
Thursday
Sunny, with a high near 14. Wind chill values as low as -10. Calm wind becoming south 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 5. South wind 7 to 10 mph, with gusts as high as 23 mph.
Friday
A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 27. Southwest wind 6 to 8 mph, with gusts as high as 18 mph.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 12. West wind 3 to 5 mph.
Saturday
Partly sunny, with a high near 24. West wind 3 to 6 mph.
Saturday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 5. Light northeast wind.
Sunday
A 20 percent chance of snow. Partly sunny, with a high near 20. Northeast wind 3 to 6 mph.
Sunday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 0. Calm wind.
Monday
A 20 percent chance of snow. Mostly cloudy, with a high near 24. Calm wind becoming south 5 to 7 mph in the morning.
Monday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 13. South wind around 6 mph becoming west after midnight.
Tuesday
A 20 percent chance of snow. Mostly cloudy, with a high near 29. West wind 6 to 8 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:
5:11 am CST Dec 3, 2025
Forecast Valid:
5am CST Dec 3, 2025-6pm CST Dec 9, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation