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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

5 Miles N Wilton WI

  • Overnight

    Overnight: A 20 percent chance of showers between 3am and 4am. Mostly cloudy, with a low around 51. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 51 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 72. Northwest wind 10 to 13 mph, with gusts as high as 21 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 48. West wind 5 to 11 mph, with gusts as high as 20 mph.

    Low: 48 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Juneteenth

    Juneteenth: A slight chance of thunderstorms after 5pm. Sunny, with a high near 74. West wind 6 to 9 mph. Chance of precipitation is 10%.

    High: 74 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 52. Southwest wind 3 to 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 75. Northwest wind 6 to 8 mph.

    High: 75 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 53. Northwest wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers. Partly sunny, with a high near 72. East wind 3 to 7 mph.

    High: 72 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 52. Northeast wind 5 to 7 mph.

    Low: 52 °F

    Slight Chance
    Showers

Detailed Forecast

Overnight
A 20 percent chance of showers between 3am and 4am. Mostly cloudy, with a low around 51. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 72. Northwest wind 10 to 13 mph, with gusts as high as 21 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 48. West wind 5 to 11 mph, with gusts as high as 20 mph.
Juneteenth
A slight chance of thunderstorms after 5pm. Sunny, with a high near 74. West wind 6 to 9 mph. Chance of precipitation is 10%.
Friday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 52. Southwest wind 3 to 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Sunny, with a high near 75. Northwest wind 6 to 8 mph.
Saturday Night
Mostly cloudy, with a low around 53. Northwest wind around 5 mph becoming calm in the evening.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 72. East wind 3 to 7 mph.
Sunday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 52. Northeast wind 5 to 7 mph.
Monday
Mostly sunny, with a high near 74. Northeast wind around 6 mph.
Monday Night
Partly cloudy, with a low around 52. Light and variable wind.
Tuesday
A 30 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 55. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 76. Light and variable wind becoming west 5 to 7 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles N Wilton WI
 43.88°N 90.55°W
Last Update:
11:56 pm CDT Jun 17, 2026
Forecast Valid:
12am CDT Jun 18, 2026-6pm CDT Jun 24, 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