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.

Overcast

55°F

13°C

Humidity 95%
Wind Speed Calm
Barometer 29.57 in (1001.7 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 7 Mar 3:55 am CST
Extended Forecast for

Tunnel City WI

  • Overnight

    Overnight: A 30 percent chance of showers. Areas of fog. Otherwise, cloudy, with a low around 39. West wind around 14 mph, with gusts as high as 22 mph.

    Low: 39 °F

    Chance
    Showers and
    Areas Fog

  • Saturday

    Saturday: A 40 percent chance of showers before 8am. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a temperature falling to around 34 by 2pm. Northwest wind 10 to 15 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F⇓

    Chance
    Showers and
    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30. Southwest wind 7 to 15 mph, with gusts as high as 29 mph.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 62. Southwest wind 11 to 14 mph, with gusts as high as 28 mph.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 43. Southwest wind 10 to 14 mph, with gusts as high as 28 mph.

    Low: 43 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 65. Southwest wind 6 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 65 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 33. Northwest wind 5 to 9 mph becoming east after midnight. Winds could gust as high as 18 mph.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers after noon. Mostly sunny, with a high near 51. East wind 9 to 13 mph, with gusts as high as 22 mph.

    High: 51 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of rain and snow showers. Mostly cloudy, with a low around 27. Northeast wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

    Low: 27 °F

    Chance
    Rain/Snow

Detailed Forecast

Overnight
A 30 percent chance of showers. Areas of fog. Otherwise, cloudy, with a low around 39. West wind around 14 mph, with gusts as high as 22 mph.
Saturday
A 40 percent chance of showers before 8am. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a temperature falling to around 34 by 2pm. Northwest wind 10 to 15 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Mostly clear, with a low around 30. Southwest wind 7 to 15 mph, with gusts as high as 29 mph.
Sunday
Sunny, with a high near 62. Southwest wind 11 to 14 mph, with gusts as high as 28 mph.
Sunday Night
Mostly cloudy, with a low around 43. Southwest wind 10 to 14 mph, with gusts as high as 28 mph.
Monday
Mostly sunny, with a high near 65. Southwest wind 6 to 9 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 33. Northwest wind 5 to 9 mph becoming east after midnight. Winds could gust as high as 18 mph.
Tuesday
A 40 percent chance of showers after noon. Mostly sunny, with a high near 51. East wind 9 to 13 mph, with gusts as high as 22 mph.
Tuesday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 27. Northeast wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Wednesday
A 40 percent chance of snow showers. Mostly cloudy, with a high near 42. Northwest wind 8 to 13 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 21. Northwest wind 5 to 9 mph, with gusts as high as 18 mph.
Thursday
Partly sunny, with a high near 45. Northwest wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 28. South wind 8 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Friday
A chance of rain and snow showers. Mostly cloudy, with a high near 48. Breezy, with a southwest wind 10 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tunnel City WI
 44.01°N 90.54°W
Last Update:
3:47 am CST Mar 7, 2026
Forecast Valid:
4am CST Mar 7, 2026-6pm CDT Mar 13, 2026
 
Forecast Discussion
 
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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