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

21°F

-6°C

Humidity 33%
Wind Speed N 6 mph
Barometer 30.27 in (1026.5 mb)
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 6 Feb 8:55 pm CST
Extended Forecast for

5 Miles SSW Sparta WI

  • Tonight

    Tonight: Clear, with a low around 1. North wind around 6 mph becoming calm after midnight.

    Low: 1 °F

    Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 25. Calm wind becoming south around 6 mph in the afternoon.

    High: 25 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 18. Southeast wind 3 to 5 mph.

    Low: 18 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 35. Southeast wind around 5 mph becoming calm in the afternoon.

    High: 35 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 45. Calm wind becoming southwest around 5 mph.

    High: 45 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain after noon. Mostly cloudy, with a high near 46. Calm wind becoming northwest around 6 mph in the morning.

    High: 46 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: A chance of rain and snow before midnight, then a slight chance of snow. Mostly cloudy, with a low around 25. Northwest wind around 6 mph. Chance of precipitation is 30%.

    Low: 25 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow

Detailed Forecast

Tonight
Clear, with a low around 1. North wind around 6 mph becoming calm after midnight.
Saturday
Mostly sunny, with a high near 25. Calm wind becoming south around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 18. Southeast wind 3 to 5 mph.
Sunday
Partly sunny, with a high near 35. Southeast wind around 5 mph becoming calm in the afternoon.
Sunday Night
Partly cloudy, with a low around 22. Calm wind.
Monday
Partly sunny, with a high near 45. Calm wind becoming southwest around 5 mph.
Monday Night
Mostly cloudy, with a low around 29. Calm wind.
Tuesday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 46. Calm wind becoming northwest around 6 mph in the morning.
Tuesday Night
A chance of rain and snow before midnight, then a slight chance of snow. Mostly cloudy, with a low around 25. Northwest wind around 6 mph. Chance of precipitation is 30%.
Wednesday
A 20 percent chance of snow. Partly sunny, with a high near 36. Northwest wind 5 to 7 mph.
Wednesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 20. Northwest wind around 5 mph becoming calm in the evening.
Thursday
A 20 percent chance of snow. Partly sunny, with a high near 37. Calm wind becoming northwest around 6 mph.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 21. Light and variable wind.
Friday
Partly sunny, with a high near 41. Calm wind becoming southwest around 5 mph.
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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:
7:48 pm CST Feb 6, 2026
Forecast Valid:
9pm CST Feb 6, 2026-6pm CST Feb 13, 2026
 
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Additional Resources

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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