News Headlines
Current conditions at
Sparta, Sparta / Fort McCoy Airport (KCMY)
Lat: 43.96°NLon: 90.74°WElev: 837ft.
Mostly Cloudy
55°F
13°C
| Humidity | 54% |
| Wind Speed | E 9 G 22 mph |
| Barometer | 29.67 in (1005.6 mb) |
| Dewpoint | 38°F (3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 53°F (12°C) |
| Last update | 17 Feb 2:55 pm CST |
Extended Forecast for
Sparta WI
Tonight
Low: 43 °F
Chance
Showers then
ShowersWednesday
High: 56 °F
Breezy.
Slight Chance
Rain then
Mostly SunnyWednesday Night

Low: 29 °F
Mostly Clear
Thursday
High: 47 °F
Mostly Sunny
then Chance
RainThursday Night

Low: 26 °F
Rain/Snow
LikelyFriday

High: 35 °F
Chance Snow
Friday Night
Low: 19 °F
Slight Chance
Snow then
Mostly CloudySaturday
High: 34 °F
Partly Sunny
then Slight
Chance SnowSaturday Night
Low: 15 °F
Slight Chance
Snow then
Mostly Cloudy
Detailed Forecast
Tonight
Rain and thunderstorms before 4am, then a chance of rain between 4am and 5am. Low around 43. East wind 9 to 15 mph becoming south after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A slight chance of rain between 11am and noon. Mostly sunny, with a high near 56. Breezy, with a west wind 13 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 29. West wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Thursday
A 30 percent chance of rain after noon. Mostly sunny, with a high near 47. Calm wind becoming north around 6 mph in the morning.
Thursday Night
A chance of rain before 9pm, then rain and snow likely between 9pm and 3am, then snow likely after 3am. Mostly cloudy, with a low around 26. Northeast wind around 7 mph becoming northwest after midnight. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Friday
A 50 percent chance of snow. Mostly cloudy, with a high near 35. Northwest wind 7 to 11 mph, with gusts as high as 20 mph. New snow accumulation of around an inch possible.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 19. West wind 3 to 7 mph. Winds could gust as high as 18 mph.
Saturday
A 20 percent chance of snow after noon. Partly sunny, with a high near 34. Northwest wind 3 to 8 mph.
Saturday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 15. Northwest wind around 6 mph.
Sunday
Partly sunny, with a high near 28. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 9. Northwest wind 5 to 7 mph becoming calm in the evening.
Monday
Sunny, with a high near 29. Light north wind.
Monday Night
Partly cloudy, with a low around 14. Calm wind becoming southeast around 6 mph after midnight.
Tuesday
A 20 percent chance of snow. Mostly sunny, with a high near 37. Southeast wind 6 to 11 mph, with gusts as high as 21 mph.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Sparta WI
43.93°N 90.81°W
43.93°N 90.81°W
3:11 pm CST Feb 17, 2026
3pm CST Feb 17, 2026-6pm CST Feb 24, 2026


