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

37°F

3°C

Humidity 75%
Wind Speed NW 6 mph
Barometer 29.94 in (1015.1 mb)
Dewpoint 30°F (-1°C)
Visibility 8.00 mi
Wind Chill32°F (0°C)
Last update 10 Feb 9:55 am CST
Extended Forecast for

Sparta WI

  • Today

    Today: Partly sunny, with a high near 37. South wind 5 to 15 mph becoming northwest in the morning. Winds could gust as high as 25 mph.

    High: 37 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 20. Northwest wind 7 to 10 mph, with gusts as high as 23 mph.

    Low: 20 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 38. Northwest wind 5 to 7 mph becoming calm in the afternoon.

    High: 38 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 21. Calm wind.

    Low: 21 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A chance of snow before 3pm, then a chance of rain and snow. Partly sunny, with a high near 43. Calm wind. Chance of precipitation is 30%.

    High: 43 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 24. Calm wind.

    Low: 24 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 47. Light southwest wind.

    High: 47 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 25. Calm wind.

    Low: 25 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 48. Calm wind becoming south around 5 mph.

    High: 48 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 37. South wind 5 to 15 mph becoming northwest in the morning. Winds could gust as high as 25 mph.
Tonight
Partly cloudy, with a low around 20. Northwest wind 7 to 10 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 38. Northwest wind 5 to 7 mph becoming calm in the afternoon.
Wednesday Night
Increasing clouds, with a low around 21. Calm wind.
Thursday
A chance of snow before 3pm, then a chance of rain and snow. Partly sunny, with a high near 43. Calm wind. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 24. Calm wind.
Friday
Sunny, with a high near 47. Light southwest wind.
Friday Night
Mostly clear, with a low around 25. Calm wind.
Saturday
Sunny, with a high near 48. Calm wind becoming south around 5 mph.
Saturday Night
Partly cloudy, with a low around 29. Calm wind.
Sunday
Mostly sunny, with a high near 47. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 27. Calm wind.
Washington's Birthday
Partly sunny, with a high near 49. 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:
10:12 am CST Feb 10, 2026
Forecast Valid:
10am CST Feb 10, 2026-6pm CST Feb 16, 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