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.

Partly Cloudy

67°F

19°C

Humidity 96%
Wind Speed Calm
Barometer 29.95 in (1014.0 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 26 Jul 3:55 am CDT
Extended Forecast for

4 Miles ESE Sparta / Fort McCoy Airport WI

  • Today

    Today: Patchy fog before 8am. Otherwise, partly sunny, with a high near 87. Light and variable wind.

    High: 87 °F

    Patchy Fog
    then Partly
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 68. Light southwest wind.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 91. Heat index values as high as 96. Calm wind becoming south around 5 mph in the afternoon.

    High: 91 °F

    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74. Light south wind.

    Low: 74 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 94. Southwest wind around 6 mph becoming northwest in the afternoon.

    High: 94 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Light and variable wind.

    Low: 68 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms. Partly sunny, with a high near 87. Light northeast wind. Chance of precipitation is 20%.

    High: 87 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 40%.

    Low: 65 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. Northeast wind 3 to 6 mph. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, partly sunny, with a high near 87. Light and variable wind.
Tonight
Mostly clear, with a low around 68. Light southwest wind.
Sunday
Sunny, with a high near 91. Heat index values as high as 96. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74. Light south wind.
Monday
Mostly sunny, with a high near 94. Southwest wind around 6 mph becoming northwest in the afternoon.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Light and variable wind.
Tuesday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 87. Light northeast wind. Chance of precipitation is 20%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 40%.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. Northeast wind 3 to 6 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 57. Light north wind.
Thursday
Sunny, with a high near 79. Calm wind becoming northeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 55. Calm wind.
Friday
Sunny, with a high near 80. Light east wind.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Sparta / Fort McCoy Airport WI
 43.93°N 90.66°W
Last Update:
3:44 am CDT Jul 26, 2025
Forecast Valid:
4am CDT Jul 26, 2025-6pm CDT Aug 1, 2025
 
Forecast Discussion
 
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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