Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Overcast

32°F

0°C

Humidity 83%
Wind Speed N 6 mph
Barometer 29.62 in (1004.2 mb)
Dewpoint 28°F (-2°C)
Visibility 9.00 mi
Wind Chill26°F (-3°C)
Last update 19 Feb 5:55 pm CST
Extended Forecast for

Sparta WI

Winter Weather Advisory February 20, 12:00am until February 20, 09:00am
Click here for hazard details and duration
Winter Weather Advisory
  • Tonight

    Tonight: Snow, mainly after midnight.  Low around 24. Blustery, with a north wind 8 to 16 mph, with gusts as high as 31 mph.  Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 3 inches possible.

    Low: 24 °F

    Chance Snow
    then Snow and
    Blustery

  • Friday

    Friday: Snow likely, mainly before 10am.  Mostly cloudy, with a high near 34. Breezy, with a northwest wind 14 to 18 mph, with gusts as high as 32 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Breezy. Snow
    Likely then
    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 20. West wind 5 to 8 mph, with gusts as high as 20 mph.

    Low: 20 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 32. Northwest wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 32 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 15. Northwest wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 15 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 26. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.

    High: 26 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 10. Northwest wind 5 to 8 mph, with gusts as high as 21 mph.

    Low: 10 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 29. Northwest wind around 5 mph becoming calm  in the afternoon.

    High: 29 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 12. Light and variable wind.

    Low: 12 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Snow, mainly after midnight. Low around 24. Blustery, with a north wind 8 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 3 inches possible.
Friday
Snow likely, mainly before 10am. Mostly cloudy, with a high near 34. Breezy, with a northwest wind 14 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday Night
Mostly cloudy, with a low around 20. West wind 5 to 8 mph, with gusts as high as 20 mph.
Saturday
Partly sunny, with a high near 32. Northwest wind 5 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly cloudy, with a low around 15. Northwest wind 6 to 8 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 26. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.
Sunday Night
Mostly cloudy, with a low around 10. Northwest wind 5 to 8 mph, with gusts as high as 21 mph.
Monday
Mostly sunny, with a high near 29. Northwest wind around 5 mph becoming calm in the afternoon.
Monday Night
Mostly cloudy, with a low around 12. Light and variable wind.
Tuesday
Partly sunny, with a high near 38. Light south wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 23. South wind around 6 mph becoming west after midnight.
Wednesday
A 20 percent chance of snow. Mostly sunny, with a high near 38. West wind 5 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 14. West wind around 6 mph becoming calm in the evening.
Thursday
A slight chance of rain and snow. Mostly sunny, with a high near 42. Calm wind becoming southwest around 6 mph in the morning. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
3:16 pm CST Feb 19, 2026
6pm CST Feb 19, 2026-6pm CST Feb 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database