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

60°F

16°C

Humidity 97%
Wind Speed Calm
Barometer 30.03 in (1016.8 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 30 Jul 2:55 am CDT
Extended Forecast for

5 Miles SSE Sparta / Fort McCoy Airport WI

  • Overnight

    Overnight: Mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 86. Calm wind becoming southwest around 6 mph in the morning.

    High: 86 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 63. Light south wind.

    Low: 63 °F

    Increasing
    Clouds

  • Friday

    Friday: Showers likely, mainly after noon. Mostly cloudy, with a high near 72. Calm wind becoming east 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 72 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 58. Northeast wind 3 to 8 mph. Winds could gust as high as 18 mph. New precipitation amounts between a quarter and half of an inch possible.

    Low: 58 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 83. North wind 3 to 5 mph.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59. Light northeast wind.

    Low: 59 °F

    Mostly Clear

  • Sunday

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

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 63. Calm wind.
Thursday
Mostly sunny, with a high near 86. Calm wind becoming southwest around 6 mph in the morning.
Thursday Night
Increasing clouds, with a low around 63. Light south wind.
Friday
Showers likely, mainly after noon. Mostly cloudy, with a high near 72. Calm wind becoming east 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 58. Northeast wind 3 to 8 mph. Winds could gust as high as 18 mph. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Mostly sunny, with a high near 83. North wind 3 to 5 mph.
Saturday Night
Mostly clear, with a low around 59. Light northeast wind.
Sunday
Sunny, with a high near 82. Calm wind.
Sunday Night
Mostly clear, with a low around 59. Calm wind.
Monday
Sunny, with a high near 84. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 62. Light south wind.
Tuesday
Sunny, with a high near 86. Southwest wind 3 to 6 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63. Light west wind.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. Light west wind.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Sparta / Fort McCoy Airport WI
 43.88°N 90.7°W
Last Update:
2:21 am CDT Jul 30, 2026
Forecast Valid:
3am CDT Jul 30, 2026-6pm CDT Aug 5, 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