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.

Overcast

55°F

13°C

Humidity 81%
Wind Speed Calm
Barometer 30.16 in (1021.8 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 14 Oct 8:55 pm CDT
Extended Forecast for

3 Miles ESE Sparta / Fort McCoy Airport WI

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. Calm wind becoming east around 6 mph after midnight.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers, mainly after 11am. High near 59. East wind 3 to 5 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 59 °F

    Showers
    Likely then
    Showers

  • Thursday Night

    Thursday Night: Showers, mainly before 3am. Low around 38. Northwest wind 6 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Showers then
    Chance
    Showers

  • Friday

    Friday: A chance of showers between 7am and 1pm. Mostly cloudy, with a high near 55. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Widespread frost, mainly after 1am. Otherwise, mostly clear, with a low around 27. North wind around 6 mph becoming calm in the evening. Winds could gust as high as 20 mph.

    Low: 27 °F

    Frost

  • Saturday

    Saturday: Widespread frost before 9am. Otherwise, sunny, with a high near 60. Light south wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 23 mph.

    High: 60 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 36. Southwest wind around 7 mph, with gusts as high as 22 mph.

    Low: 36 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 67. Southwest wind 8 to 15 mph, with gusts as high as 25 mph.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41. South wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 24 mph.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 43. Calm wind becoming east around 6 mph after midnight.
Thursday
Showers, mainly after 11am. High near 59. East wind 3 to 5 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Showers, mainly before 3am. Low around 38. Northwest wind 6 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A chance of showers between 7am and 1pm. Mostly cloudy, with a high near 55. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Widespread frost, mainly after 1am. Otherwise, mostly clear, with a low around 27. North wind around 6 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Saturday
Widespread frost before 9am. Otherwise, sunny, with a high near 60. Light south wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 23 mph.
Saturday Night
Clear, with a low around 36. Southwest wind around 7 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 67. Southwest wind 8 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 41. South wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 24 mph.
Monday
Mostly sunny, with a high near 69. Light southwest wind.
Monday Night
Mostly clear, with a low around 40. Calm wind.
Tuesday
Sunny, with a high near 71. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 46. Calm wind.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 72. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Sparta / Fort McCoy Airport WI
 43.95°N 90.69°W
Last Update:
6:46 pm CDT Oct 14, 2026
Forecast Valid:
9pm CDT Oct 14, 2026-6pm CDT Oct 21, 2026
 
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Additional Resources

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Chance of Precipitation