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

Sparta / Fort McCoy Airport WI

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 58. Southwest wind 5 to 7 mph becoming calm after midnight.

    Low: 58 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 80. Southwest wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 18 mph.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50. Northwest wind 3 to 7 mph.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 71. Northwest wind 7 to 14 mph, with gusts as high as 22 mph.

    High: 71 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47. West wind around 6 mph becoming calm in the evening.

    Low: 47 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 75. Calm wind becoming west 5 to 8 mph in the morning. Winds could gust as high as 18 mph.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 50. Light southwest wind.

    Low: 50 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 75. Light southwest wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

    High: 75 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 50. Light southwest wind. Chance of precipitation is 30%.

    Low: 50 °F

    Chance
    Showers

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 58. Southwest wind 5 to 7 mph becoming calm after midnight.
Saturday
Mostly sunny, with a high near 80. Southwest wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Mostly clear, with a low around 50. Northwest wind 3 to 7 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 71. Northwest wind 7 to 14 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 47. West wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 75. Calm wind becoming west 5 to 8 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 50. Light southwest wind.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 75. Light southwest wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 50. Light southwest wind. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 76. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 70%.
Wednesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 54. South wind 5 to 7 mph becoming light and variable. Winds could gust as high as 18 mph. Chance of precipitation is 70%.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 76. West wind 6 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 51. Northwest wind around 5 mph becoming calm in the evening.
Juneteenth
Sunny, with a high near 80. Calm wind becoming west around 6 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta / Fort McCoy Airport WI
 43.95°N 90.72°W
Last Update:
10:41 pm CDT Jun 12, 2026
Forecast Valid:
10pm CDT Jun 12, 2026-6pm CDT Jun 19, 2026
 
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Additional Resources

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