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

  • Overnight

    Overnight: Partly cloudy, with a low around 58. West wind around 7 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 79. Light and variable wind becoming south 5 to 9 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Mostly Sunny
    then T-storms
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms, mainly before 3am. Low around 60. Southwest wind 7 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    T-storms

  • Tuesday

    Tuesday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 78. Southwest wind 5 to 7 mph becoming northwest in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Light and variable wind. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 70. Calm wind becoming east 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. East wind 3 to 6 mph. Chance of precipitation is 70%.

    Low: 52 °F

    Showers
    Likely

  • Thursday

    Thursday: A 40 percent chance of showers. Partly sunny, with a high near 71. West wind 3 to 7 mph.

    High: 71 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. Light and variable wind becoming southeast around 5 mph after midnight.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 58. West wind around 7 mph, with gusts as high as 20 mph.
Monday
Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 79. Light and variable wind becoming south 5 to 9 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and thunderstorms, mainly before 3am. Low around 60. Southwest wind 7 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 78. Southwest wind 5 to 7 mph becoming northwest in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Light and variable wind. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 70. Calm wind becoming east 5 to 7 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. East wind 3 to 6 mph. Chance of precipitation is 70%.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 71. West wind 3 to 7 mph.
Thursday Night
Mostly clear, with a low around 51. Light and variable wind becoming southeast around 5 mph after midnight.
Friday
Showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 79. Southeast wind 6 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 41. South wind 8 to 11 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 70%.
Saturday
A chance of rain and snow showers. Partly sunny, with a high near 53. West wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Saturday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 28. Northwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 54. West wind 6 to 9 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta / Fort McCoy Airport WI
 43.95°N 90.72°W
Last Update:
2:26 am CDT Apr 13, 2026
Forecast Valid:
3am CDT Apr 13, 2026-6pm CDT Apr 19, 2026
 
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Additional Resources

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