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

27°F

-3°C

Humidity 74%
Wind Speed Calm
Barometer 30.11 in (1021.2 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 11 Jan 10:55 pm CST
Extended Forecast for

5 Miles N Wilton WI

  • Tonight

    Tonight: Partly cloudy, with a low around 22. West wind 8 to 15 mph, with gusts as high as 29 mph.

    Low: 22 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 41. West wind 8 to 10 mph, with gusts as high as 21 mph.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 30. Southwest wind 6 to 10 mph, with gusts as high as 21 mph.

    Low: 30 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly before noon. Partly sunny, with a high near 44. Breezy, with a west wind 14 to 20 mph, with gusts as high as 30 mph.

    High: 44 °F

    Chance Rain
    and Breezy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 21. Blustery, with a west wind 17 to 21 mph, with gusts as high as 36 mph.

    Low: 21 °F

    Cloudy and
    Breezy then
    Chance Snow
    and Blustery

  • Wednesday

    Wednesday: A 30 percent chance of snow before noon. Partly sunny, with a high near 27. Blustery, with a north wind 21 to 23 mph, with gusts as high as 37 mph.

    High: 27 °F

    Blustery.
    Chance Snow
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 8. North wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 8 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of snow after noon. Mostly sunny, with a high near 26. North wind 5 to 7 mph becoming south in the afternoon.

    High: 26 °F

    Mostly Sunny
    then Chance
    Snow

  • Thursday Night

    Thursday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 19. South wind around 8 mph, with gusts as high as 18 mph.

    Low: 19 °F

    Chance Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 22. West wind 8 to 15 mph, with gusts as high as 29 mph.
Monday
Mostly sunny, with a high near 41. West wind 8 to 10 mph, with gusts as high as 21 mph.
Monday Night
Increasing clouds, with a low around 30. Southwest wind 6 to 10 mph, with gusts as high as 21 mph.
Tuesday
A 30 percent chance of rain, mainly before noon. Partly sunny, with a high near 44. Breezy, with a west wind 14 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 21. Blustery, with a west wind 17 to 21 mph, with gusts as high as 36 mph.
Wednesday
A 30 percent chance of snow before noon. Partly sunny, with a high near 27. Blustery, with a north wind 21 to 23 mph, with gusts as high as 37 mph.
Wednesday Night
Partly cloudy, with a low around 8. North wind 5 to 15 mph, with gusts as high as 25 mph.
Thursday
A 30 percent chance of snow after noon. Mostly sunny, with a high near 26. North wind 5 to 7 mph becoming south in the afternoon.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 19. South wind around 8 mph, with gusts as high as 18 mph.
Friday
Snow likely, mainly after noon. Mostly cloudy, with a high near 29. South wind 8 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 9. Northwest wind around 10 mph, with gusts as high as 20 mph.
Saturday
A 20 percent chance of snow. Mostly cloudy, with a high near 18. Northwest wind 10 to 13 mph, with gusts as high as 21 mph.
Saturday Night
Mostly cloudy, with a low around 4. West wind around 11 mph, with gusts as high as 21 mph.
Sunday
Partly sunny, with a high near 20. West wind 10 to 13 mph, with gusts as high as 21 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles N Wilton WI
 43.88°N 90.52°W
Last Update:
8:37 pm CST Jan 11, 2026
Forecast Valid:
11pm CST Jan 11, 2026-6pm CST Jan 18, 2026
 
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Additional Resources

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Chance of Precipitation