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.

A Few Clouds

65°F

18°C

Humidity 53%
Wind Speed E 6 mph
Barometer 30.32 in (1027.2 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 22 Sep 3:55 pm CDT
Extended Forecast for

4 Miles NNE Sparta / Fort McCoy Airport WI

  • Tonight

    Tonight: Mostly clear, with a low around 36. East wind around 5 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Clear

  • Wednesday

    Wednesday: Patchy frost before 7am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming east around 6 mph in the morning.

    High: 65 °F

    Patchy Frost
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 66. Light southeast wind.

    High: 66 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 68. Light east wind.

    High: 68 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after 1pm. Mostly cloudy, with a high near 65. Calm wind becoming southeast 5 to 8 mph in the morning.

    High: 65 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 50. Light southeast wind.

    Low: 50 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 36. East wind around 5 mph becoming calm in the evening.
Wednesday
Patchy frost before 7am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming east around 6 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 43. Calm wind.
Thursday
Partly sunny, with a high near 66. Light southeast wind.
Thursday Night
Mostly cloudy, with a low around 47. Calm wind.
Friday
Partly sunny, with a high near 68. Light east wind.
Friday Night
Mostly cloudy, with a low around 47. Calm wind.
Saturday
A 30 percent chance of showers after 1pm. Mostly cloudy, with a high near 65. Calm wind becoming southeast 5 to 8 mph in the morning.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 50. Light southeast wind.
Sunday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 68. Light south wind.
Sunday Night
Mostly cloudy, with a low around 52. Calm wind.
Monday
Partly sunny, with a high near 73. Light and variable wind.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 54. Calm wind.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 69. Calm wind becoming south 5 to 8 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Sparta / Fort McCoy Airport WI
 44.01°N 90.72°W
Last Update:
3:31 pm CDT Sep 22, 2026
Forecast Valid:
4pm CDT Sep 22, 2026-6pm CDT Sep 29, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation