Hazardous Weather Conditions
Current conditions at
Sparta, Sparta / Fort McCoy Airport (KCMY)
Lat: 43.96°NLon: 90.74°WElev: 837ft.
Overcast and Breezy
40°F
4°C
| Humidity | 49% |
| Wind Speed | W 21 G 28 mph |
| Barometer | 29.91 in (1013.8 mb) |
| Dewpoint | 22°F (-6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 30°F (-1°C) |
| Last update | 18 Apr 12:55 pm CDT |
Extended Forecast for
Sparta WI
This Afternoon

High: 46 °F
Mostly Cloudy
and BreezyTonight

Low: 29 °F
Partly Cloudy
then FrostSunday
High: 48 °F
Chance
Sprinkles/Snow
then SunnySunday Night

Low: 23 °F
Mostly Clear
then FrostMonday

High: 56 °F
Frost then
Mostly SunnyMonday Night

Low: 41 °F
Partly Cloudy
Tuesday

High: 73 °F
Sunny
Tuesday Night

Low: 40 °F
Clear
Wednesday

High: 74 °F
Sunny
Detailed Forecast
This Afternoon
Mostly cloudy, with a high near 46. Breezy, with a west wind around 17 mph, with gusts as high as 28 mph.
Tonight
Widespread frost after 5am. Otherwise, partly cloudy, with a low around 29. West wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 22 mph.
Sunday
A chance of snow showers before 9am, then a chance of sprinkles and flurries between 9am and 10am. Mostly sunny, with a high near 48. Light west wind becoming northwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Sunday Night
Widespread frost after 4am. Otherwise, mostly clear, with a low around 23. Northwest wind around 6 mph becoming calm in the evening.
Monday
Widespread frost before 8am. Otherwise, mostly sunny, with a high near 56. Calm wind becoming south 5 to 8 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 41. South wind 5 to 7 mph, with gusts as high as 18 mph.
Tuesday
Sunny, with a high near 73. Calm wind becoming west around 5 mph.
Tuesday Night
Clear, with a low around 40. Calm wind.
Wednesday
Sunny, with a high near 74. East wind 3 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 55. Southeast wind around 8 mph, with gusts as high as 18 mph.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 77. Breezy, with a south wind 8 to 16 mph, with gusts as high as 25 mph.
Thursday Night
Showers and possibly a thunderstorm. Low around 53. South wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 65. Southwest wind 8 to 13 mph becoming west in the afternoon. Winds could gust as high as 21 mph.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Sparta WI
43.93°N 90.81°W
43.93°N 90.81°W
1:26 pm CDT Apr 18, 2026
1pm CDT Apr 18, 2026-6pm CDT Apr 24, 2026



