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.

Overcast

37°F

3°C

Humidity 92%
Wind Speed Calm
Barometer 29.85 in (1012.0 mb)
Dewpoint 34°F (1°C)
Visibility 9.00 mi
Last update 26 Dec 4:55 pm CST
Extended Forecast for

Warrens WI

  • Tonight

    Tonight: Patchy fog. Otherwise, mostly cloudy, with a low around 29. Light and variable wind.

    Low: 29 °F

    Patchy Fog

  • Saturday

    Saturday: Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 42. Southeast wind 5 to 9 mph, with gusts as high as 18 mph.

    High: 42 °F

    Areas Fog
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: A chance of drizzle, mainly before midnight. Cloudy, with a low around 32. Southeast wind around 6 mph becoming calm in the evening.

    Low: 32 °F

    Chance
    Drizzle

  • Sunday

    Sunday: A chance of rain before noon, then rain and snow. High near 39. Light and variable wind becoming northwest 9 to 14 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Chance Rain
    then
    Rain/Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before midnight. Cloudy, with a low around 10. Blustery, with a northwest wind 14 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.

    Low: 10 °F

    Snow Likely
    and Blustery

  • Monday

    Monday: A 30 percent chance of snow before noon. Mostly cloudy, with a high near 18. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 34 mph.

    High: 18 °F

    Blustery.
    Chance Snow
    then Partly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 4. Northwest wind 6 to 13 mph, with gusts as high as 26 mph.

    Low: 4 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 26. West wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 26 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 7. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 7 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog. Otherwise, mostly cloudy, with a low around 29. Light and variable wind.
Saturday
Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 42. Southeast wind 5 to 9 mph, with gusts as high as 18 mph.
Saturday Night
A chance of drizzle, mainly before midnight. Cloudy, with a low around 32. Southeast wind around 6 mph becoming calm in the evening.
Sunday
A chance of rain before noon, then rain and snow. High near 39. Light and variable wind becoming northwest 9 to 14 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Sunday Night
Snow likely, mainly before midnight. Cloudy, with a low around 10. Blustery, with a northwest wind 14 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible.
Monday
A 30 percent chance of snow before noon. Mostly cloudy, with a high near 18. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 34 mph.
Monday Night
Partly cloudy, with a low around 4. Northwest wind 6 to 13 mph, with gusts as high as 26 mph.
Tuesday
A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 26. West wind 6 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 7. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.
Wednesday
Partly sunny, with a high near 16. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around -5. Northwest wind around 9 mph, with gusts as high as 20 mph.
New Year's Day
Sunny, with a high near 8. Northwest wind 8 to 11 mph, with gusts as high as 21 mph.
Thursday Night
Mostly clear, with a low around -8. West wind 5 to 7 mph.
Friday
Mostly sunny, with a high near 14. West wind around 6 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:
4:57 pm CST Dec 26, 2025
Forecast Valid:
5pm CST Dec 26, 2025-6pm CST Jan 2, 2026
 
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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