National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fog/Mist

21°F

-6°C

Humidity 92%
Wind Speed Calm
Barometer 29.97 in (1016.9 mb)
Dewpoint 19°F (-7°C)
Visibility 6.00 mi
Last update 30 Dec 4:55 pm CST
Extended Forecast for

Warrens WI

  • This Afternoon

    This Afternoon: Snow, possibly mixed with freezing rain. Steady temperature around 18. West wind around 5 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. Total daytime snow accumulation of less than one inch possible.

    High: 18 °F

    Wintry Mix

  • Tonight

    Tonight: Patchy snow and freezing rain, mainly before 9pm. Mostly cloudy, with a steady temperature around 19. Northwest wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 19 °F

    Patchy Wintry
    Mix then
    Slight Chance
    Wintry Mix

  • Wednesday

    Wednesday: Snow likely, mainly between 11am and 5pm. Cloudy, then gradually becoming mostly sunny, with a temperature rising to near 22 by 10am, then falling to around 14 during the remainder of the day. Northwest wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 22 °F⇓

    Snow Likely

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around -3. Wind chill values as low as -10. Northwest wind 3 to 7 mph. Winds could gust as high as 20 mph.

    Low: -3 °F

    Mostly Clear

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 15. West wind 3 to 6 mph.

    High: 15 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 4. Light west wind.

    Low: 4 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 18. Northwest wind 3 to 7 mph.

    High: 18 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 2. Northwest wind around 5 mph becoming calm in the evening.

    Low: 2 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 20. Light west wind.

    High: 20 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Snow, possibly mixed with freezing rain. Steady temperature around 18. West wind around 5 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. Total daytime snow accumulation of less than one inch possible.
Tonight
Patchy snow and freezing rain, mainly before 9pm. Mostly cloudy, with a steady temperature around 19. Northwest wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Wednesday
Snow likely, mainly between 11am and 5pm. Cloudy, then gradually becoming mostly sunny, with a temperature rising to near 22 by 10am, then falling to around 14 during the remainder of the day. Northwest wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday Night
Mostly clear, with a low around -3. Wind chill values as low as -10. Northwest wind 3 to 7 mph. Winds could gust as high as 20 mph.
New Year's Day
Partly sunny, with a high near 15. West wind 3 to 6 mph.
Thursday Night
Mostly cloudy, with a low around 4. Light west wind.
Friday
Mostly sunny, with a high near 18. Northwest wind 3 to 7 mph.
Friday Night
Partly cloudy, with a low around 2. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 20. Light west wind.
Saturday Night
Mostly cloudy, with a low around 7. Light and variable wind.
Sunday
A 20 percent chance of snow. Mostly cloudy, with a high near 28. South wind 3 to 6 mph.
Sunday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 14. Light and variable wind becoming northwest around 5 mph after midnight.
Monday
Partly sunny, with a high near 29. West wind 5 to 7 mph.
Monday Night
Mostly cloudy, with a low around 11. Northwest wind 3 to 5 mph.
Tuesday
Partly sunny, with a high near 27. West wind 3 to 6 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Warrens WI
 44.14°N 90.51°W
Last Update:
4:51 pm CST Dec 30, 2025
Forecast Valid:
4pm CST Dec 30, 2025-6pm CST Jan 6, 2026
 
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