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

52°F

11°C

Humidity 52%
Wind Speed Calm
Barometer 30.21 in (1023.5 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 22 May 12:55 am CDT
Extended Forecast for

4 Miles S Sparta / Fort McCoy Airport WI

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 49. East wind around 7 mph.

    Low: 49 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 69. Breezy, with an east wind 8 to 16 mph, with gusts as high as 25 mph.

    High: 69 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 52. East wind 7 to 14 mph, with gusts as high as 25 mph.

    Low: 52 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after 1pm. Mostly cloudy, with a high near 75. Southeast wind 5 to 7 mph becoming calm in the afternoon.

    High: 75 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 80. Light and variable wind.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54. Calm wind.

    Low: 54 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Sunny, with a high near 88. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 49. East wind around 7 mph.
Friday
Partly sunny, with a high near 69. Breezy, with an east wind 8 to 16 mph, with gusts as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 52. East wind 7 to 14 mph, with gusts as high as 25 mph.
Saturday
A 30 percent chance of showers after 1pm. Mostly cloudy, with a high near 75. Southeast wind 5 to 7 mph becoming calm in the afternoon.
Saturday Night
Mostly cloudy, with a low around 51. Calm wind.
Sunday
Mostly sunny, with a high near 80. Light and variable wind.
Sunday Night
Mostly clear, with a low around 54. Calm wind.
Memorial Day
Sunny, with a high near 88. Calm wind becoming south 5 to 8 mph in the afternoon.
Monday Night
Mostly clear, with a low around 60. Calm wind.
Tuesday
Sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 60. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 61. East wind around 5 mph.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85. East wind 5 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Sparta / Fort McCoy Airport WI
 43.91°N 90.76°W
Last Update:
2:21 am CDT May 22, 2026
Forecast Valid:
2am CDT May 22, 2026-6pm CDT May 28, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation