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.

A Few Clouds

29°F

-2°C

Humidity 77%
Wind Speed Calm
Barometer 29.77 in (1009.8 mb)
Dewpoint 23°F (-5°C)
Visibility 9.00 mi
Last update 4 Jan 7:55 pm CST
Extended Forecast for

2 Miles SW Cataract WI

  • Tonight

    Tonight: Increasing clouds, with a steady temperature around 26. South wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 22 mph.

    Low: 26 °F

    Increasing
    Clouds

  • Monday

    Monday: Cloudy, with a high near 36. Calm wind.

    High: 36 °F

    Cloudy

  • Monday Night

    Monday Night: A slight chance of freezing rain before 11pm, then a chance of rain between 11pm and 5am, then a chance of freezing rain after 5am. Patchy fog after 11pm. Otherwise, cloudy, with a low around 31. Light southeast wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Chance
    Rain/Freezing
    Rain and
    Patchy Fog

  • Tuesday

    Tuesday: A chance of rain or freezing rain before 9am, then a chance of rain between 9am and noon. Mostly cloudy, with a high near 38. Light and variable wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 38 °F

    Chance
    Rain/Freezing
    Rain then
    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 22. Light west wind.

    Low: 22 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 41. Calm wind becoming south around 5 mph.

    High: 41 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 26. Light south wind.

    Low: 26 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 40. Light and variable wind.

    High: 40 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 24. Calm wind becoming northeast around 5 mph after midnight.

    Low: 24 °F

    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

Tonight
Increasing clouds, with a steady temperature around 26. South wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 22 mph.
Monday
Cloudy, with a high near 36. Calm wind.
Monday Night
A slight chance of freezing rain before 11pm, then a chance of rain between 11pm and 5am, then a chance of freezing rain after 5am. Patchy fog after 11pm. Otherwise, cloudy, with a low around 31. Light southeast wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A chance of rain or freezing rain before 9am, then a chance of rain between 9am and noon. Mostly cloudy, with a high near 38. Light and variable wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Mostly cloudy, with a low around 22. Light west wind.
Wednesday
Mostly sunny, with a high near 41. Calm wind becoming south around 5 mph.
Wednesday Night
Partly cloudy, with a low around 26. Light south wind.
Thursday
Partly sunny, with a high near 40. Light and variable wind.
Thursday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 24. Calm wind becoming northeast around 5 mph after midnight.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 38. Northeast wind 5 to 7 mph becoming north in the afternoon. Chance of precipitation is 40%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 21. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.
Saturday
A 40 percent chance of snow. Mostly cloudy, with a high near 28. Northwest wind 8 to 11 mph, with gusts as high as 21 mph.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 11. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.
Sunday
Mostly sunny, with a high near 28. West wind around 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Cataract WI
 44.06°N 90.87°W
Last Update:
7:46 pm CST Jan 4, 2026
Forecast Valid:
8pm CST Jan 4, 2026-6pm CST Jan 11, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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