Hazardous Weather Conditions
Current conditions at
Sparta, Sparta / Fort McCoy Airport (KCMY)
Lat: 43.96°NLon: 90.74°WElev: 837ft.
Overcast
23°F
-5°C
| Humidity | 83% |
| Wind Speed | SW 8 mph |
| Barometer | 29.77 in (1009.9 mb) |
| Dewpoint | 19°F (-7°C) |
| Visibility | 7.00 mi |
| Wind Chill | 14°F (-10°C) |
| Last update | 21 Jan 1:55 pm CST |
Extended Forecast for
Sparta WI
Extreme Cold Watch January 23, 11:00am until January 24, 12:00pm
Extreme Cold Warning January 23, 12:00am until January 23, 11:00am
This Afternoon

High: 24 °F
Snow
Tonight
Low: 4 °F
Snow Likely
then Mostly
CloudyThursday

High: 14 °F
Chance
FlurriesThursday Night

Low: -19 °F
Partly Cloudy
Friday

High: -6 °F
Cold
Friday Night

Low: -19 °F
Partly Cloudy
Saturday

High: 1 °F
Cold
Saturday Night
Low: -10 °F
Mostly Cloudy
then Slight
Chance SnowSunday
High: 8 °F
Slight Chance
Snow then
Partly Sunny
Detailed Forecast
This Afternoon
Snow. High near 24. Southwest wind 8 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. Total daytime snow accumulation of around an inch possible.
Tonight
Snow likely, mainly before 9pm. Mostly cloudy, with a low around 4. Wind chill values as low as -7. West wind 6 to 14 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday
A chance of flurries between 7am and 4pm. Partly sunny, with a high near 14. Wind chill values as low as -10. West wind 5 to 14 mph, with gusts as high as 29 mph.
Thursday Night
Partly cloudy, with a low around -19. Wind chill values as low as -36. Northwest wind 7 to 10 mph, with gusts as high as 28 mph.
Friday
Mostly sunny and cold, with a high near -6. Northwest wind 3 to 8 mph. Winds could gust as high as 18 mph.
Friday Night
Partly cloudy, with a low around -19. Calm wind.
Saturday
Partly sunny and cold, with a high near 1. Calm wind.
Saturday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around -10. Calm wind.
Sunday
A 20 percent chance of snow before noon. Partly sunny, with a high near 8. Light and variable wind.
Sunday Night
Mostly cloudy, with a low around -10. Calm wind.
Monday
Mostly sunny, with a high near 10. Calm wind becoming west 5 to 7 mph in the morning.
Monday Night
Partly cloudy, with a low around -1. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 20. Calm wind becoming west around 6 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
2:06 pm CST Jan 21, 2026
2pm CST Jan 21, 2026-6pm CST Jan 27, 2026



