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

19°F

-7°C

Humidity 47%
Wind Speed N 9 G 22 mph
Barometer 30.06 in (1019.4 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 14 Jan 11:55 am CST
Extended Forecast for

Warrens WI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 20. Blustery, with a northwest wind 13 to 16 mph, with gusts as high as 26 mph.

    High: 20 °F

    Mostly Sunny
    and Blustery

  • Tonight

    Tonight: Mostly cloudy, with a low around 5. Northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 24 mph.

    Low: 5 °F

    Mostly Cloudy

  • Thursday

    Thursday: Snow showers after noon. High near 23. Calm wind becoming south 5 to 8 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 23 °F

    Partly Sunny
    then Snow
    Showers

  • Thursday Night

    Thursday Night: Snow showers. Low around 22. 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 2 inches possible.

    Low: 22 °F

    Snow Showers

  • Friday

    Friday: Snow showers before noon, then snow after noon. High near 32. West wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 32 °F

    Snow Showers

  • Friday Night

    Friday Night: A 40 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 7. Northwest wind 10 to 13 mph, with gusts as high as 24 mph. New snow accumulation of less than a half inch possible.

    Low: 7 °F

    Chance Snow

  • Saturday

    Saturday: A 20 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

    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around -3. Northwest wind 6 to 9 mph, with gusts as high as 20 mph.

    Low: -3 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of snow, mainly after noon. Partly sunny, with a high near 12. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 12 °F

    Chance Snow

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 20. Blustery, with a northwest wind 13 to 16 mph, with gusts as high as 26 mph.
Tonight
Mostly cloudy, with a low around 5. Northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 24 mph.
Thursday
Snow showers after noon. High near 23. Calm wind becoming south 5 to 8 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday Night
Snow showers. Low around 22. 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 2 inches possible.
Friday
Snow showers before noon, then snow after noon. High near 32. West wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday Night
A 40 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 7. Northwest wind 10 to 13 mph, with gusts as high as 24 mph. New snow accumulation of less than a half inch possible.
Saturday
A 20 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 -3. Northwest wind 6 to 9 mph, with gusts as high as 20 mph.
Sunday
A 30 percent chance of snow, mainly after noon. Partly sunny, with a high near 12. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Sunday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 1. West wind 8 to 10 mph, with gusts as high as 21 mph.
M.L.King Day
Partly sunny, with a high near 11. Northwest wind 9 to 13 mph, with gusts as high as 23 mph.
Monday Night
Partly cloudy, with a low around -4. West wind 5 to 8 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 11. Northwest wind 5 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:
11:07 am CST Jan 14, 2026
Forecast Valid:
12pm CST Jan 14, 2026-6pm CST Jan 20, 2026
 
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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