Hazardous Weather Conditions
Current conditions at
Sparta, Sparta / Fort McCoy Airport (KCMY)
Lat: 43.96°NLon: 90.74°WElev: 837ft.
Mostly Cloudy
26°F
-3°C
| Humidity | 90% |
| Wind Speed | Calm |
| Barometer | 29.73 in (1008.3 mb) |
| Dewpoint | 24°F (-4°C) |
| Visibility | 10.00 mi |
| Last update | 5 Dec 9:55 pm CST |
Extended Forecast for
3 Miles W Tunnel City WI
Tonight

Low: 12 °F
Mostly Cloudy
Saturday
High: 20 °F
Partly Sunny
then Chance
SnowSaturday Night

Low: 6 °F
Snow
Sunday

High: 17 °F
Mostly Sunny
Sunday Night

Low: -3 °F
Mostly Cloudy
Monday

High: 21 °F
Slight Chance
SnowMonday Night

Low: 11 °F
Snow Likely
Tuesday
High: 33 °F
Mostly Cloudy
then Chance
SnowTuesday Night

Low: 20 °F
Snow
Detailed Forecast
Tonight
Mostly cloudy, with a low around 12. Northwest wind 5 to 8 mph, with gusts as high as 21 mph.
Saturday
A 40 percent chance of snow after 5pm. Mostly cloudy, with a high near 20. Northwest wind around 5 mph becoming calm in the morning. Little or no snow accumulation expected.
Saturday Night
Snow. Low around 6. Light northeast wind. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Sunday
Mostly sunny, with a high near 17. Calm wind becoming north around 5 mph.
Sunday Night
Mostly cloudy, with a low around -3. Calm wind.
Monday
A 20 percent chance of snow. Mostly cloudy, with a high near 21. Calm wind becoming south 5 to 7 mph in the afternoon.
Monday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 11. South wind around 7 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.
Tuesday
A 40 percent chance of snow after noon. Mostly cloudy, with a high near 33. West wind around 7 mph becoming south in the afternoon.
Tuesday Night
Snow. Low around 20. South wind 6 to 10 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%.
Wednesday
A 40 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 30. Northwest wind 8 to 11 mph, with gusts as high as 21 mph.
Wednesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 8. Northwest wind 5 to 7 mph, with gusts as high as 18 mph.
Thursday
A 20 percent chance of snow. Mostly cloudy, with a high near 21. Northwest wind around 7 mph.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 3. Northwest wind around 6 mph.
Friday
Partly sunny, with a high near 15. Northwest wind 6 to 8 mph.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles W Tunnel City WI
44.01°N 90.63°W
44.01°N 90.63°W
10:26 pm CST Dec 5, 2025
10pm CST Dec 5, 2025-6pm CST Dec 12, 2025



