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.

Fair

34°F

1°C

Humidity 70%
Wind Speed W 5 mph
Barometer 30.12 in (1021.2 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 5 Apr 7:55 am CDT
Extended Forecast for

Sparta WI

  • Today

    Today: Mostly sunny, with a high near 52. Northwest wind 10 to 13 mph, with gusts as high as 23 mph.

    High: 52 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 32. Northwest wind 7 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 32 °F

    Showers
    Likely then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 42. Northwest wind 7 to 14 mph, with gusts as high as 24 mph.

    High: 42 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 16. Northwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 20 mph.

    Low: 16 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 44. Calm wind becoming south around 5 mph in the afternoon.

    High: 44 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow showers before 1am, then rain and snow showers likely between 1am and 4am, then rain showers likely after 4am. Mostly cloudy, with a low around 31. South wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Chance Snow
    Showers then
    Rain/Snow
    Likely

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 63. Breezy, with a south wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.

    High: 63 °F

    Showers
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 37. West wind 5 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    Low: 37 °F

    Showers
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers. Mostly sunny, with a high near 52. West wind around 6 mph.

    High: 52 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 52. Northwest wind 10 to 13 mph, with gusts as high as 23 mph.
Tonight
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 32. Northwest wind 7 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Partly sunny, with a high near 42. Northwest wind 7 to 14 mph, with gusts as high as 24 mph.
Monday Night
Mostly clear, with a low around 16. Northwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 44. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
A chance of snow showers before 1am, then rain and snow showers likely between 1am and 4am, then rain showers likely after 4am. Mostly cloudy, with a low around 31. South wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 63. Breezy, with a south wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 37. West wind 5 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 52. West wind around 6 mph.
Thursday Night
A chance of rain showers before 1am, then a chance of rain and snow showers. Mostly cloudy, with a low around 32. Calm wind. Chance of precipitation is 40%.
Friday
A chance of rain and snow showers. Partly sunny, with a high near 52. Light east wind. Chance of precipitation is 40%.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 33. North wind around 5 mph becoming east after midnight.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 57. East wind 5 to 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
Last Update:
5:51 am CDT Apr 5, 2026
Forecast Valid:
8am CDT Apr 5, 2026-6pm CDT Apr 11, 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