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.

Partly Cloudy

53°F

12°C

Humidity 88%
Wind Speed Calm
Barometer 30.17 in (1022.2 mb)
Dewpoint 49°F (9°C)
Visibility 9.00 mi
Last update 16 Oct 6:55 am CDT
Extended Forecast for

2 Miles WNW Sparta / Fort McCoy Airport WI

  • Today

    Today: Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 66. Southeast wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Showers
    Likely

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 7pm and 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 56. Southeast wind around 6 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 56 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 76. South wind 7 to 14 mph, with gusts as high as 23 mph.

    High: 76 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers, mainly before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 50. Southwest wind around 6 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 71. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 71 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers, with thunderstorms also possible after 10pm. Mostly cloudy, with a low around 41. Northwest wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 41 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 59. Northwest wind 7 to 15 mph, with gusts as high as 23 mph.

    High: 59 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 37. West wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 67. Light south wind increasing to 6 to 11 mph in the morning.

    High: 67 °F

    Sunny

Detailed Forecast

Today
Showers likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 66. Southeast wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A slight chance of showers and thunderstorms between 7pm and 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 56. Southeast wind around 6 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Friday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 76. South wind 7 to 14 mph, with gusts as high as 23 mph.
Friday Night
A 50 percent chance of showers, mainly before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 50. Southwest wind around 6 mph becoming calm in the evening. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 71. Calm wind becoming west 5 to 8 mph in the afternoon.
Saturday Night
A chance of showers, with thunderstorms also possible after 10pm. Mostly cloudy, with a low around 41. Northwest wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly sunny, with a high near 59. Northwest wind 7 to 15 mph, with gusts as high as 23 mph.
Sunday Night
Clear, with a low around 37. West wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 67. Light south wind increasing to 6 to 11 mph in the morning.
Monday Night
A 30 percent chance of showers, mainly after 1am. Partly cloudy, with a low around 41. South wind around 6 mph.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 59. West wind 6 to 15 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 35. West wind 6 to 9 mph, with gusts as high as 21 mph.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 56. West wind 6 to 11 mph, with gusts as high as 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Sparta / Fort McCoy Airport WI
 43.97°N 90.78°W
Last Update:
5:26 am CDT Oct 16, 2025
Forecast Valid:
7am CDT Oct 16, 2025-6pm CDT Oct 22, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation