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.

Overcast

35°F

2°C

Humidity 83%
Wind Speed W 12 G 17 mph
Barometer 29.86 in (1012.0 mb)
Dewpoint 31°F (-1°C)
Visibility 9.00 mi
Wind Chill27°F (-3°C)
Last update 7 Mar 3:55 pm CST
Extended Forecast for

Wilton WI

  • Tonight

    Tonight: Partly cloudy, with a low around 30. Southwest wind 7 to 14 mph, with gusts as high as 29 mph.

    Low: 30 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 62. Southwest wind 13 to 15 mph, with gusts as high as 26 mph.

    High: 62 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43. Southwest wind 9 to 14 mph, with gusts as high as 24 mph.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 67. Southwest wind 5 to 8 mph becoming light and variable in the afternoon. Winds could gust as high as 20 mph.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37. Light and variable wind becoming east 5 to 7 mph in the evening.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers after noon. Mostly sunny, with a high near 56. East wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 56 °F

    Sunny then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of rain showers before midnight, then a chance of rain and snow showers. Mostly cloudy, with a low around 28. Northeast wind 8 to 13 mph. Chance of precipitation is 50%.

    Low: 28 °F

    Chance
    Showers then
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A chance of rain and snow showers before noon, then a chance of snow showers. Mostly cloudy, with a high near 41. North wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    High: 41 °F

    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 21. Northwest wind 7 to 10 mph, with gusts as high as 22 mph.

    Low: 21 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 30. Southwest wind 7 to 14 mph, with gusts as high as 29 mph.
Sunday
Mostly sunny, with a high near 62. Southwest wind 13 to 15 mph, with gusts as high as 26 mph.
Sunday Night
Partly cloudy, with a low around 43. Southwest wind 9 to 14 mph, with gusts as high as 24 mph.
Monday
Sunny, with a high near 67. Southwest wind 5 to 8 mph becoming light and variable in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 37. Light and variable wind becoming east 5 to 7 mph in the evening.
Tuesday
A 30 percent chance of showers after noon. Mostly sunny, with a high near 56. East wind 8 to 11 mph, with gusts as high as 21 mph.
Tuesday Night
A chance of rain showers before midnight, then a chance of rain and snow showers. Mostly cloudy, with a low around 28. Northeast wind 8 to 13 mph. Chance of precipitation is 50%.
Wednesday
A chance of rain and snow showers before noon, then a chance of snow showers. Mostly cloudy, with a high near 41. North wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Wednesday Night
Partly cloudy, with a low around 21. Northwest wind 7 to 10 mph, with gusts as high as 22 mph.
Thursday
Mostly sunny, with a high near 47. Northwest wind 7 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 32. South wind 8 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.
Friday
A chance of rain and snow showers. Partly sunny, with a high near 51. Breezy, with a southwest wind 13 to 20 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 20. Northwest wind 6 to 10 mph, with gusts as high as 22 mph.
Saturday
A 30 percent chance of snow showers. Mostly cloudy, with a high near 42. West wind 6 to 9 mph becoming south in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wilton WI
 43.81°N 90.52°W
Last Update:
1:52 pm CST Mar 7, 2026
Forecast Valid:
4pm CST Mar 7, 2026-6pm CDT Mar 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation