National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

59°F

15°C

Humidity 97%
Wind Speed Calm
Barometer 30.09 in (1018.9 mb)
Dewpoint 58°F (14°C)
Visibility 8.00 mi
Last update 7 Jul 3:55 am CDT
Extended Forecast for

5 Miles NNW Wilton WI

  • Today

    Today: Mostly sunny, with a high near 86. Southwest wind 3 to 5 mph.

    High: 86 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 3am and 4am. Mostly cloudy, with a low around 65. Southwest wind 3 to 5 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 87. Southwest wind 5 to 9 mph, with gusts as high as 18 mph.

    High: 87 °F

    Heavy Rain

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 65. Southwest wind 3 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 65 °F

    Heavy Rain

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. West wind around 5 mph becoming light and variable. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 61. Light northeast wind.

    Low: 61 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82. East wind 3 to 5 mph.

    High: 82 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 84. Calm wind becoming south around 5 mph in the afternoon.

    High: 84 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 86. Southwest wind 3 to 5 mph.
Tonight
A slight chance of showers and thunderstorms between 3am and 4am. Mostly cloudy, with a low around 65. Southwest wind 3 to 5 mph. Chance of precipitation is 20%.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 87. Southwest wind 5 to 9 mph, with gusts as high as 18 mph.
Wednesday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 65. Southwest wind 3 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. West wind around 5 mph becoming light and variable. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Mostly cloudy, with a low around 61. Light northeast wind.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82. East wind 3 to 5 mph.
Friday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 61. Calm wind.
Saturday
Sunny, with a high near 84. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 63. Light south wind.
Sunday
Sunny, with a high near 87. West wind 3 to 6 mph.
Sunday Night
Mostly clear, with a low around 66. Southwest wind 3 to 5 mph.
Monday
Sunny, with a high near 90. Southwest wind 5 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Wilton WI
 43.88°N 90.55°W
Last Update:
4:51 am CDT Jul 7, 2026
Forecast Valid:
4am CDT Jul 7, 2026-6pm CDT Jul 13, 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