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

22°F

-6°C

Humidity 63%
Wind Speed E 8 mph
Barometer 30.22 in (1025.1 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 8 Feb 4:55 am CST
Extended Forecast for

Sparta WI

  • Today

    Today: Partly sunny, with a high near 34. Southeast wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 34 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 22. South wind 3 to 5 mph.

    Low: 22 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 42. South wind 3 to 6 mph.

    High: 42 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29. Calm wind becoming northwest around 5 mph after midnight.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 40. Northwest wind 5 to 9 mph, with gusts as high as 18 mph.

    High: 40 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 18. Northwest wind around 5 mph becoming calm in the evening.

    Low: 18 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 38. Calm wind.

    High: 38 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday

    Thursday: A 40 percent chance of snow. Partly sunny, with a high near 40. Light southeast wind.

    High: 40 °F

    Chance Snow

Detailed Forecast

Today
Partly sunny, with a high near 34. Southeast wind 6 to 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 22. South wind 3 to 5 mph.
Monday
Partly sunny, with a high near 42. South wind 3 to 6 mph.
Monday Night
Mostly cloudy, with a low around 29. Calm wind becoming northwest around 5 mph after midnight.
Tuesday
Mostly sunny, with a high near 40. Northwest wind 5 to 9 mph, with gusts as high as 18 mph.
Tuesday Night
Mostly clear, with a low around 18. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 38. Calm wind.
Wednesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 22. Calm wind.
Thursday
A 40 percent chance of snow. Partly sunny, with a high near 40. Light southeast wind.
Thursday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 22. Calm wind.
Friday
Mostly sunny, with a high near 41. Light south wind.
Friday Night
Partly cloudy, with a low around 24. Calm wind.
Saturday
A 20 percent chance of snow. Partly sunny, with a high near 40. Calm wind becoming south 5 to 7 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
Last Update:
5:17 am CST Feb 8, 2026
Forecast Valid:
5am CST Feb 8, 2026-6pm CST Feb 14, 2026
 
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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