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.

Mostly Cloudy

64°F

18°C

Humidity 95%
Wind Speed Calm
Barometer 29.58 in (1001.6 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 17 Oct 11:55 pm CDT
Extended Forecast for

4 Miles NE Sparta / Fort McCoy Airport WI

  • Overnight

    Overnight: Scattered showers and thunderstorms before 1am, then isolated showers between 1am and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 49. Light southwest wind. Chance of precipitation is 30%.

    Low: 49 °F

    Scattered
    Showers

  • Saturday

    Saturday: Sunny, with a high near 71. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers. Increasing clouds, with a low around 42. Northwest wind 6 to 8 mph, with gusts as high as 20 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 59. Northwest wind 8 to 15 mph, with gusts as high as 24 mph.

    High: 59 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. Light and variable wind.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 64. South wind 6 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.

    High: 64 °F

    Partly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 38. West wind 7 to 9 mph, with gusts as high as 22 mph.

    Low: 38 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 50. Breezy, with a northwest wind 10 to 17 mph, with gusts as high as 25 mph.

    High: 50 °F

    Slight Chance
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 31. Northwest wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 21 mph.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Overnight
Scattered showers and thunderstorms before 1am, then isolated showers between 1am and 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 49. Light southwest wind. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 71. Light southwest wind increasing to 5 to 10 mph in the morning.
Saturday Night
A 40 percent chance of showers. Increasing clouds, with a low around 42. Northwest wind 6 to 8 mph, with gusts as high as 20 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 59. Northwest wind 8 to 15 mph, with gusts as high as 24 mph.
Sunday Night
Mostly clear, with a low around 36. Light and variable wind.
Monday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 64. South wind 6 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.
Monday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 38. West wind 7 to 9 mph, with gusts as high as 22 mph.
Tuesday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 50. Breezy, with a northwest wind 10 to 17 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 31. Northwest wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 21 mph.
Wednesday
Mostly sunny, with a high near 56. Calm wind becoming west 5 to 7 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 35. Light south wind.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 59. West wind 3 to 8 mph.
Thursday Night
Partly cloudy, with a low around 34. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 60. West wind 3 to 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Sparta / Fort McCoy Airport WI
 43.99°N 90.69°W
Last Update:
11:01 pm CDT Oct 17, 2025
Forecast Valid:
12am CDT Oct 18, 2025-6pm CDT Oct 24, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation