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: Mostly cloudy, with a steady temperature around 48. East wind around 7 mph.

    Low: 48 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 68. Breezy, with an east wind 8 to 16 mph, with gusts as high as 25 mph.

    High: 68 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 50. East wind 5 to 14 mph, with gusts as high as 25 mph.

    Low: 50 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 75. Light and variable wind.

    High: 75 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 81. Light and variable wind.

    High: 81 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 85. Calm wind becoming south around 6 mph in the afternoon.

    High: 85 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 48. East wind around 7 mph.
Friday
Partly sunny, with a high near 68. Breezy, with an east wind 8 to 16 mph, with gusts as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 50. East wind 5 to 14 mph, with gusts as high as 25 mph.
Saturday
A 30 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 75. Light and variable wind.
Saturday Night
Mostly cloudy, with a low around 50. Calm wind.
Sunday
Mostly sunny, with a high near 81. Light and variable wind.
Sunday Night
Mostly clear, with a low around 53. Calm wind.
Memorial Day
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 85. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 57. Calm wind.
Tuesday
Mostly sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Calm wind becoming east 5 to 7 mph in the afternoon.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59. Light east wind.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Calm wind becoming southeast around 6 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Sparta / Fort McCoy Airport WI
 43.95°N 90.72°W
Last Update:
12:26 am CDT May 22, 2026
Forecast Valid:
1am CDT May 22, 2026-6pm CDT May 28, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation