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

17°F

-8°C

Humidity 92%
Wind Speed Calm
Barometer 29.79 in (1010.2 mb)
Dewpoint 15°F (-9°C)
Visibility 9.00 mi
Last update 27 Feb 1:55 am CST
Extended Forecast for

2 Miles S Sparta WI

  • Overnight

    Overnight: Partly cloudy, with a low around 25. Light south wind.

    Low: 25 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 50. South wind 5 to 14 mph becoming west in the afternoon. Winds could gust as high as 28 mph.

    High: 50 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 17. Northwest wind 6 to 11 mph, with gusts as high as 28 mph.

    Low: 17 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Snow likely, mainly between 9am and 4pm. Mostly cloudy, with a high near 24. North wind 5 to 7 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 24 °F

    Snow Likely

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 5. Calm wind.

    Low: 5 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 28. Calm wind.

    High: 28 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 15. Calm wind.

    Low: 15 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 38. Calm wind becoming south around 6 mph.

    High: 38 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 23. Light south wind.

    Low: 23 °F

    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 25. Light south wind.
Friday
Mostly sunny, with a high near 50. South wind 5 to 14 mph becoming west in the afternoon. Winds could gust as high as 28 mph.
Friday Night
Increasing clouds, with a low around 17. Northwest wind 6 to 11 mph, with gusts as high as 28 mph.
Saturday
Snow likely, mainly between 9am and 4pm. Mostly cloudy, with a high near 24. North wind 5 to 7 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Saturday Night
Mostly clear, with a low around 5. Calm wind.
Sunday
Mostly sunny, with a high near 28. Calm wind.
Sunday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 15. Calm wind.
Monday
Partly sunny, with a high near 38. Calm wind becoming south around 6 mph.
Monday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 23. Light south wind.
Tuesday
A 30 percent chance of snow, mainly before noon. Partly sunny, with a high near 42. Light and variable wind.
Tuesday Night
Partly cloudy, with a low around 24. Calm wind.
Wednesday
A 20 percent chance of rain. Mostly sunny, with a high near 47. Calm wind becoming southeast around 6 mph in the afternoon.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 31. East wind around 6 mph.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 47. East wind 5 to 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Sparta WI
 43.93°N 90.81°W
Last Update:
2:32 am CST Feb 27, 2026
Forecast Valid:
2am CST Feb 27, 2026-6pm CST Mar 5, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation