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

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

    Tonight: Mostly cloudy, with a low around 12. Northwest wind 5 to 8 mph, with gusts as high as 21 mph.

    Low: 12 °F

    Mostly Cloudy

  • Saturday

    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.

    High: 20 °F

    Partly Sunny
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Snow. Low around 6. Light northeast wind. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 6 °F

    Snow

  • Sunday

    Sunday: Mostly sunny, with a high near 17. Calm wind becoming north around 5 mph.

    High: 17 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around -3. Calm wind.

    Low: -3 °F

    Mostly Cloudy

  • Monday

    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.

    High: 21 °F

    Slight Chance
    Snow

  • Monday Night

    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%.

    Low: 11 °F

    Snow Likely

  • Tuesday

    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.

    High: 33 °F

    Mostly Cloudy
    then Chance
    Snow

  • Tuesday Night

    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%.

    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.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Tunnel City WI
 44.01°N 90.63°W
Last Update:
10:26 pm CST Dec 5, 2025
Forecast Valid:
10pm CST Dec 5, 2025-6pm CST Dec 12, 2025
 
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Additional Resources

Radar & Satellite Image

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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