Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

45°F

7°C

Humidity 66%
Wind Speed Calm
Barometer 29.77 in (1008.5 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 10 Mar 2:55 am CDT
Extended Forecast for

Sparta WI

  • Overnight

    Overnight: Partly cloudy, with a low around 35. Northeast wind around 6 mph.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 51. East wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 51 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain showers before 4am, then a chance of snow showers.  Mostly cloudy, with a low around 31. Northeast wind 6 to 9 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%.

    Low: 31 °F

    Chance
    Showers then
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow showers likely before 8am, then snow showers likely between 8am and 4pm, then a slight chance of rain and snow showers after 4pm.  Mostly cloudy, with a high near 42. North wind 6 to 14 mph, with gusts as high as 22 mph.  Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 42 °F

    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 21. Northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 21 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of rain and snow showers between 1pm and 4pm, then a slight chance of rain showers after 4pm.  Partly sunny, with a high near 46. Light southwest wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.  Chance of precipitation is 20%.

    High: 46 °F

    Partly Sunny
    then Slight
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Rain before 1am, then rain and snow likely.  Low around 29. South wind 7 to 11 mph becoming west after midnight. Winds could gust as high as 24 mph.  Chance of precipitation is 80%.

    Low: 29 °F

    Rain then
    Rain/Snow

  • Friday

    Friday: Snow likely before 7am.  Mostly sunny, with a high near 43. Northwest wind 11 to 15 mph, with gusts as high as 28 mph.  Chance of precipitation is 60%.

    High: 43 °F

    Snow Likely
    then Sunny

  • Friday Night

    Friday Night: A 20 percent chance of snow showers after 1am.  Mostly cloudy, with a low around 23. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 23 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 35. Northeast wind around 6 mph.
Tuesday
Partly sunny, with a high near 51. East wind 6 to 11 mph, with gusts as high as 21 mph.
Tuesday Night
A chance of rain showers before 4am, then a chance of snow showers. Mostly cloudy, with a low around 31. Northeast wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Wednesday
Rain and snow showers likely before 8am, then snow showers likely between 8am and 4pm, then a slight chance of rain and snow showers after 4pm. Mostly cloudy, with a high near 42. North wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Wednesday Night
Mostly clear, with a low around 21. Northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
A slight chance of rain and snow showers between 1pm and 4pm, then a slight chance of rain showers after 4pm. Partly sunny, with a high near 46. Light southwest wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 20%.
Thursday Night
Rain before 1am, then rain and snow likely. Low around 29. South wind 7 to 11 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 80%.
Friday
Snow likely before 7am. Mostly sunny, with a high near 43. Northwest wind 11 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Friday Night
A 20 percent chance of snow showers after 1am. Mostly cloudy, with a low around 23. Northwest wind around 5 mph becoming calm in the evening.
Saturday
A chance of snow showers before 1pm, then a chance of rain and snow showers. Cloudy, with a high near 43. Southeast wind 5 to 8 mph. Chance of precipitation is 50%.
Saturday Night
Rain and snow showers likely. Cloudy, with a low around 26. East wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Sunday
Snow showers likely. Cloudy, with a high near 34. Breezy, with a north wind 10 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Sunday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 10. Northwest wind 9 to 14 mph, with gusts as high as 25 mph.
Monday
Partly sunny, with a high near 25. Northwest wind 8 to 10 mph, with gusts as high as 18 mph.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Sparta WI
 43.93°N 90.81°W
1:41 am CDT Mar 10, 2026
3am CDT Mar 10, 2026-6pm CDT Mar 16, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database