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 with Haze

69°F

21°C

Humidity 66%
Wind Speed E 3 mph
Barometer 30.31 in (1026.7 mb)
Dewpoint 57°F (14°C)
Visibility 6.00 mi
Last update 25 Sep 11:55 am CDT
Extended Forecast for

3 Miles E Sparta / Fort McCoy Airport WI

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 70. Light east wind.

    High: 70 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 68. Calm wind becoming southeast 5 to 7 mph in the morning.

    High: 68 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers between 1am and 5am. Mostly cloudy, with a low around 51. Calm wind. Chance of precipitation is 20%.

    Low: 51 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers between 7am and 1pm. Mostly cloudy, with a high near 65. Calm wind. Chance of precipitation is 20%.

    High: 65 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 71. Calm wind.

    High: 71 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 68. Calm wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 60%.

    High: 68 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Partly sunny, with a high near 70. Light east wind.
Tonight
Partly cloudy, with a low around 47. Calm wind.
Saturday
Partly sunny, with a high near 68. Calm wind becoming southeast 5 to 7 mph in the morning.
Saturday Night
A slight chance of showers between 1am and 5am. Mostly cloudy, with a low around 51. Calm wind. Chance of precipitation is 20%.
Sunday
A slight chance of showers between 7am and 1pm. Mostly cloudy, with a high near 65. Calm wind. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 52. Calm wind.
Monday
Mostly sunny, with a high near 71. Calm wind.
Monday Night
Partly cloudy, with a low around 53. Calm wind.
Tuesday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 68. Calm wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 55. Light south wind. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 68. West wind 3 to 6 mph.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 52. Calm wind.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 68. Southwest wind 3 to 7 mph. Winds could gust as high as 18 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Sparta / Fort McCoy Airport WI
 43.97°N 90.66°W
Last Update:
11:31 am CDT Sep 25, 2026
Forecast Valid:
12pm CDT Sep 25, 2026-6pm CDT Oct 1, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation