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

28°F

-2°C

Humidity 93%
Wind Speed Calm
Barometer 30.15 in (1022.3 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 9 Jan 5:55 pm CST
Extended Forecast for

5 Miles SSW Sparta WI

  • Tonight

    Tonight: A 50 percent chance of snow after 3am. Increasing clouds, with a steady temperature around 29. Light west wind. Total nighttime snow accumulation of less than a half inch possible.

    Low: 29 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: A 40 percent chance of snow, mainly between 11am and 5pm. Mostly cloudy, with a temperature rising to near 29 by 10am, then falling to around 24 during the remainder of the day. West wind 5 to 14 mph, with gusts as high as 24 mph. New snow accumulation of less than one inch possible.

    High: 29 °F⇓

    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 17. Northwest wind 9 to 11 mph, with gusts as high as 25 mph.

    Low: 17 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 28. Northwest wind 5 to 9 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.

    High: 28 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 21. Southwest wind around 6 mph.

    Low: 21 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 41. West wind around 6 mph.

    High: 41 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 30. Southwest wind around 6 mph.

    Low: 30 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday

    Tuesday: A 40 percent chance of rain. Mostly cloudy, with a high near 44. West wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 44 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 23. West wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 23 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
A 50 percent chance of snow after 3am. Increasing clouds, with a steady temperature around 29. Light west wind. Total nighttime snow accumulation of less than a half inch possible.
Saturday
A 40 percent chance of snow, mainly between 11am and 5pm. Mostly cloudy, with a temperature rising to near 29 by 10am, then falling to around 24 during the remainder of the day. West wind 5 to 14 mph, with gusts as high as 24 mph. New snow accumulation of less than one inch possible.
Saturday Night
Mostly cloudy, with a low around 17. Northwest wind 9 to 11 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 28. Northwest wind 5 to 9 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 21. Southwest wind around 6 mph.
Monday
Sunny, with a high near 41. West wind around 6 mph.
Monday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 30. Southwest wind around 6 mph.
Tuesday
A 40 percent chance of rain. Mostly cloudy, with a high near 44. West wind 6 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
A chance of rain before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 23. West wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Wednesday
A 20 percent chance of snow. Partly sunny, with a high near 28. North wind 7 to 10 mph, with gusts as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 14. North wind around 6 mph becoming calm in the evening.
Thursday
A 30 percent chance of snow. Mostly sunny, with a high near 29. Light and variable wind becoming southwest 5 to 7 mph in the morning.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 20. South wind around 6 mph.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 30. Southwest wind 6 to 8 mph becoming west in the afternoon.
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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:
6:41 pm CST Jan 9, 2026
Forecast Valid:
6pm CST Jan 9, 2026-6pm CST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation