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

75°F

24°C

Humidity 67%
Wind Speed Calm
Barometer 29.79 in (1008.6 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 17 Jun 9:55 am CDT
Extended Forecast for

Tunnel City WI

  • Today

    Today: Mostly sunny, with a high near 81. Northwest wind around 6 mph.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 61. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm, mainly before 3pm, then a chance of showers and thunderstorms after 3pm. High near 75. Light and variable wind becoming north 5 to 8 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 75 °F

    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 56. West wind 3 to 7 mph.

    Low: 56 °F

    Chance
    Showers then
    Partly Cloudy

  • Juneteenth

    Juneteenth: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 82. Light west wind increasing to 5 to 9 mph in the morning.

    High: 82 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60. Southwest wind 3 to 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. South wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. South wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    Low: 68 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 89. Southwest wind around 10 mph, with gusts as high as 22 mph.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 81. Northwest wind around 6 mph.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 61. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and possibly a thunderstorm, mainly before 3pm, then a chance of showers and thunderstorms after 3pm. High near 75. Light and variable wind becoming north 5 to 8 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 56. West wind 3 to 7 mph.
Juneteenth
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 82. Light west wind increasing to 5 to 9 mph in the morning.
Thursday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60. Southwest wind 3 to 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. South wind 6 to 10 mph, with gusts as high as 20 mph.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. South wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 89. Southwest wind around 10 mph, with gusts as high as 22 mph.
Saturday Night
Mostly clear, with a low around 73. South wind 8 to 10 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 89. South wind 10 to 15 mph, with gusts as high as 26 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 72. South wind around 11 mph, with gusts as high as 24 mph.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. Southwest wind around 11 mph, with gusts as high as 21 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tunnel City WI
 44.01°N 90.57°W
Last Update:
10:13 am CDT Jun 17, 2025
Forecast Valid:
10am CDT Jun 17, 2025-6pm CDT Jun 23, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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