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.

Fair

53°F

12°C

Humidity 97%
Wind Speed Calm
Barometer 30.06 in (1018.1 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 25 Aug 3:55 am CDT
Extended Forecast for

3 Miles W Tunnel City WI

  • Today

    Today: Patchy fog before 8am. Otherwise, partly sunny, with a high near 82. Southwest wind 5 to 11 mph.

    High: 82 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am. Partly cloudy, with a low around 62. South wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers after 4pm. Mostly sunny, with a high near 81. Northwest wind 7 to 14 mph.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. Northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. Calm wind.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 82. Calm wind.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59. Light and variable wind.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers. Partly sunny, with a high near 79. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 79 °F

    Chance
    Showers

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, partly sunny, with a high near 82. Southwest wind 5 to 11 mph.
Tonight
A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am. Partly cloudy, with a low around 62. South wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Wednesday
A 20 percent chance of showers after 4pm. Mostly sunny, with a high near 81. Northwest wind 7 to 14 mph.
Wednesday Night
Mostly clear, with a low around 58. Northwest wind 5 to 8 mph becoming calm in the evening.
Thursday
Sunny, with a high near 82. Calm wind becoming northwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 54. Calm wind.
Friday
Sunny, with a high near 82. Calm wind.
Friday Night
Partly cloudy, with a low around 59. Light and variable wind.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 79. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. South wind 7 to 9 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. South wind around 8 mph, with gusts as high as 21 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind 3 to 5 mph.
Monday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 85. South wind 5 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Tunnel City WI
 44.01°N 90.63°W
Last Update:
4:01 am CDT Aug 25, 2026
Forecast Valid:
4am CDT Aug 25, 2026-6pm CDT Aug 31, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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