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.

Partly Cloudy

39°F

4°C

Humidity 75%
Wind Speed Calm
Barometer 30.18 in (1022.8 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 6 Apr 3:55 am CDT
Extended Forecast for

5 Miles SSW Sparta WI

  • Today

    Today: A chance of flurries before 1pm, then a slight chance of snow showers between 1pm and 5pm, then a chance of sprinkles and flurries after 5pm. Mostly cloudy, with a high near 40. Northwest wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 40 °F

    Mostly Cloudy
    then Slight
    Chance
    Sprinkles/Snow

  • Tonight

    Tonight: A chance of flurries before 8pm. Mostly clear, with a low around 16. Northwest wind 5 to 10 mph becoming light northeast after midnight. Winds could gust as high as 20 mph.

    Low: 16 °F

    Chance
    Flurries

  • Tuesday

    Tuesday: Sunny, with a high near 45. Calm wind becoming south around 6 mph in the afternoon.

    High: 45 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow showers before 1am, then rain and snow showers between 1am and 4am, then rain showers after 4am. Low around 32. Southeast wind 6 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Chance Snow
    Showers then
    Rain/Snow

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 4pm. Partly sunny, with a high near 64. Breezy, with a south wind 13 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 42. Southwest wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 42 °F

    Showers
    Likely

  • Thursday

    Thursday: A 20 percent chance of showers. Sunny, with a high near 60. West wind 6 to 9 mph.

    High: 60 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers. Partly cloudy, with a low around 34. Northwest wind around 5 mph becoming calm in the evening.

    Low: 34 °F

    Slight Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Sunny, with a high near 56. Light north wind.

    High: 56 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Today
A chance of flurries before 1pm, then a slight chance of snow showers between 1pm and 5pm, then a chance of sprinkles and flurries after 5pm. Mostly cloudy, with a high near 40. Northwest wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Tonight
A chance of flurries before 8pm. Mostly clear, with a low around 16. Northwest wind 5 to 10 mph becoming light northeast after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 45. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
A chance of snow showers before 1am, then rain and snow showers between 1am and 4am, then rain showers after 4am. Low around 32. Southeast wind 6 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday
Showers likely, with thunderstorms also possible after 4pm. Partly sunny, with a high near 64. Breezy, with a south wind 13 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 42. Southwest wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 20 percent chance of showers. Sunny, with a high near 60. West wind 6 to 9 mph.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 34. Northwest wind around 5 mph becoming calm in the evening.
Friday
A 20 percent chance of showers after 1pm. Sunny, with a high near 56. Light north wind.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 35. Light and variable wind.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 60. Southeast wind 5 to 9 mph.
Saturday Night
Showers likely. Mostly cloudy, with a low around 49. Southeast wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Sunday
Showers and possibly a thunderstorm. High near 72. South wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
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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:
4:17 am CDT Apr 6, 2026
Forecast Valid:
4am CDT Apr 6, 2026-6pm CDT Apr 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation