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Hazardous Weather Conditions
Current conditions at
Sparta, Sparta / Fort McCoy Airport (KCMY)
Lat: 43.96°NLon: 90.74°WElev: 837ft.
Fog/Mist
22°F
-6°C
| Humidity | 94% |
| Wind Speed | Calm |
| Barometer | 29.96 in (1016.5 mb) |
| Dewpoint | 21°F (-6°C) |
| Visibility | 4.00 mi |
| Last update | 30 Dec 6:55 pm CST |
Extended Forecast for
3 Miles W Tunnel City WI
Tonight

Low: 21 °F
Patchy Wintry
MixWednesday

High: 23 °F⇓
Snow Likely
Wednesday Night

Low: -2 °F
Partly Cloudy
New Year's Day

High: 16 °F
Partly Sunny
Thursday Night

Low: 5 °F
Mostly Cloudy
Friday

High: 19 °F
Mostly Sunny
Friday Night

Low: 2 °F
Partly Cloudy
Saturday

High: 21 °F
Partly Sunny
Saturday Night

Low: 8 °F
Mostly Cloudy
Detailed Forecast
Tonight
Patchy snow and freezing rain, mainly before 9pm. Mostly cloudy, with a steady temperature around 21. Northwest wind around 6 mph, with gusts as high as 18 mph. Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Snow likely, mainly between 9am and 5pm. Cloudy, then gradually becoming mostly sunny, with a temperature rising to near 23 by 10am, then falling to around 15 during the remainder of the day. Northwest wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday Night
Partly cloudy, with a low around -2. Wind chill values as low as -10. Northwest wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 20 mph.
New Year's Day
Partly sunny, with a high near 16. Wind chill values as low as -2. Light west wind.
Thursday Night
Mostly cloudy, with a low around 5. Calm wind.
Friday
Mostly sunny, with a high near 19. Calm wind becoming northwest around 6 mph in the morning.
Friday Night
Partly cloudy, with a low around 2. Light northwest wind.
Saturday
Partly sunny, with a high near 21. Calm wind.
Saturday Night
Mostly cloudy, with a low around 8. Calm wind.
Sunday
Mostly cloudy, with a high near 29. Calm wind becoming south around 5 mph.
Sunday Night
Mostly cloudy, with a low around 15. Light and variable wind.
Monday
Partly sunny, with a high near 30. West wind 3 to 6 mph.
Monday Night
Mostly cloudy, with a low around 12. Light west wind.
Tuesday
Partly sunny, with a high near 27. West wind 3 to 5 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
6:21 pm CST Dec 30, 2025
7pm CST Dec 30, 2025-6pm CST Jan 6, 2026



