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.

Mostly Cloudy

43°F

6°C

Humidity 84%
Wind Speed Calm
Barometer 30.11 in (1020.8 mb)
Dewpoint 39°F (4°C)
Visibility 8.00 mi
Last update 5 Apr 7:55 pm CDT
Extended Forecast for

5 Miles SSW Sparta WI

  • Tonight

    Tonight: Mostly cloudy, with a low around 32. Northwest wind 6 to 8 mph, with gusts as high as 24 mph.

    Low: 32 °F

    Mostly Cloudy

  • Monday

    Monday: Isolated snow showers after 1pm. Partly sunny, with a high near 40. Northwest wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 40 °F

    Mostly Cloudy
    then Isolated
    Snow Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 16. North wind 5 to 10 mph becoming light northeast after midnight. Winds could gust as high as 20 mph.

    Low: 16 °F

    Mostly Clear

  • Tuesday

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

    High: 44 °F

    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 32. Southeast wind 5 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 32 °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 64. Breezy, with a south wind 11 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 42. Southwest wind 7 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.

    Low: 42 °F

    Showers
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers, mainly after 1pm. Mostly sunny, with a high near 58. West wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 58 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers. Partly cloudy, with a low around 32. Northwest wind around 5 mph becoming calm in the evening.

    Low: 32 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 32. Northwest wind 6 to 8 mph, with gusts as high as 24 mph.
Monday
Isolated snow showers after 1pm. Partly sunny, with a high near 40. Northwest wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 16. North wind 5 to 10 mph becoming light northeast after midnight. Winds could gust as high as 20 mph.
Tuesday
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 32. Southeast wind 5 to 10 mph, with gusts as high as 23 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 64. Breezy, with a south wind 11 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 42. Southwest wind 7 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.
Thursday
A 30 percent chance of showers, mainly after 1pm. Mostly sunny, with a high near 58. West wind 7 to 10 mph, with gusts as high as 18 mph.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 32. Northwest wind around 5 mph becoming calm in the evening.
Friday
A 30 percent chance of showers. Mostly sunny, with a high near 58. Light north wind.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 36. Light and variable wind.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 60. Southeast wind 5 to 8 mph.
Saturday Night
Showers likely. Mostly cloudy, with a low around 47. Southeast wind around 7 mph. Chance of precipitation is 60%.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 69. South wind 7 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Sparta WI
 43.89°N 90.82°W
Last Update:
7:31 pm CDT Apr 5, 2026
Forecast Valid:
9pm CDT Apr 5, 2026-6pm CDT Apr 12, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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