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.

Fog/Mist

59°F

15°C

Humidity 93%
Wind Speed Calm
Barometer 29.33 in (993.5 mb)
Dewpoint 57°F (14°C)
Visibility 4.00 mi
Last update 17 Jun 2:55 pm CDT
Extended Forecast for

4 Miles NNW Tunnel City WI

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. High near 63. South wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 63 °F

    Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 11pm, then a slight chance of showers between 11pm and 1am. Low around 51. West wind 6 to 9 mph becoming northwest in the evening. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Showers then
    Slight Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 71. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.

    High: 71 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 47. West wind 3 to 8 mph. Winds could gust as high as 18 mph.

    Low: 47 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Juneteenth

    Juneteenth: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Sunny, with a high near 73. West wind 3 to 7 mph. Chance of precipitation is 30%.

    High: 73 °F

    Sunny then
    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 51. Light and variable wind.

    Low: 51 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 75. Northwest wind 3 to 6 mph.

    High: 75 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers. Partly sunny, with a high near 71. Calm wind becoming east 5 to 7 mph in the morning.

    High: 71 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 63. South wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before 11pm, then a slight chance of showers between 11pm and 1am. Low around 51. West wind 6 to 9 mph becoming northwest in the evening. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 20 percent chance of showers and thunderstorms after 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 71. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.
Thursday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 47. West wind 3 to 8 mph. Winds could gust as high as 18 mph.
Juneteenth
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Sunny, with a high near 73. West wind 3 to 7 mph. Chance of precipitation is 30%.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 51. Light and variable wind.
Saturday
Sunny, with a high near 75. Northwest wind 3 to 6 mph.
Saturday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 52. Calm wind.
Sunday
A 50 percent chance of showers. Partly sunny, with a high near 71. Calm wind becoming east 5 to 7 mph in the morning.
Sunday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 51. Northeast wind 3 to 8 mph. Winds could gust as high as 18 mph.
Monday
Mostly sunny, with a high near 74. North wind 3 to 5 mph.
Monday Night
Partly cloudy, with a low around 52. Calm wind.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 76. Calm wind.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 54. Calm wind.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 76. Calm wind becoming west 5 to 7 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Tunnel City WI
 44.05°N 90.6°W
Last Update:
4:31 pm CDT Jun 17, 2026
Forecast Valid:
4pm CDT Jun 17, 2026-6pm CDT Jun 24, 2026
 
Forecast Discussion
 
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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