National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Mostly Cloudy

29°F

-2°C

Humidity 55%
Wind Speed W 15 mph
Barometer 29.91 in (1014.3 mb)
Dewpoint 15°F (-9°C)
Visibility 9.00 mi
Wind Chill18°F (-8°C)
Last update 10 Jan 2:55 pm CST
Extended Forecast for

Tunnel City WI

  • This Afternoon

    This Afternoon: Snow showers likely. Cloudy, with a steady temperature around 22. West wind around 13 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.

    High: 22 °F

    Snow Showers
    Likely

  • Tonight

    Tonight: Snow showers likely, mainly before 3am. Cloudy, with a low around 16. Blustery, with a northwest wind 14 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 16 °F

    Snow Showers
    Likely and
    Blustery

  • Sunday

    Sunday: Partly sunny, with a high near 29. Northwest wind 9 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph.

    High: 29 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 21. Southwest wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 21 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 40. West wind 5 to 7 mph.

    High: 40 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 29. Light southwest wind increasing to 5 to 9 mph in the evening. Winds could gust as high as 21 mph.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly before noon. Partly sunny, with a high near 43. West wind 9 to 14 mph, with gusts as high as 24 mph.

    High: 43 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 19. Northwest wind around 10 mph, with gusts as high as 23 mph.

    Low: 19 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 27. North wind 7 to 10 mph, with gusts as high as 22 mph.

    High: 27 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Snow showers likely. Cloudy, with a steady temperature around 22. West wind around 13 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow showers likely, mainly before 3am. Cloudy, with a low around 16. Blustery, with a northwest wind 14 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Sunday
Partly sunny, with a high near 29. Northwest wind 9 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 21. Southwest wind 6 to 8 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 40. West wind 5 to 7 mph.
Monday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 29. Light southwest wind increasing to 5 to 9 mph in the evening. Winds could gust as high as 21 mph.
Tuesday
A 30 percent chance of rain, mainly before noon. Partly sunny, with a high near 43. West wind 9 to 14 mph, with gusts as high as 24 mph.
Tuesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 19. Northwest wind around 10 mph, with gusts as high as 23 mph.
Wednesday
Partly sunny, with a high near 27. North wind 7 to 10 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 11. North wind around 6 mph becoming light and variable after midnight.
Thursday
A 40 percent chance of snow. Partly sunny, with a high near 30. Light southwest wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night
Snow likely. Mostly cloudy, with a low around 21. South wind around 8 mph becoming west after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 60%.
Friday
A 50 percent chance of snow. Mostly cloudy, with a high near 31. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 10. Northwest wind around 9 mph, with gusts as high as 20 mph.
Saturday
A 20 percent chance of snow. Mostly cloudy, with a high near 19. Northwest wind 8 to 10 mph, with gusts as high as 18 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Tunnel City WI
 44.01°N 90.54°W
Last Update:
5:16 pm CST Jan 10, 2026
Forecast Valid:
5pm CST Jan 10, 2026-6pm CST Jan 17, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation