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.

Fair

70°F

21°C

Humidity 46%
Wind Speed E 10 G 17 mph
Barometer 30.37 in (1029.0 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 23 Sep 2:55 pm CDT
Extended Forecast for

4 Miles S Sparta / Fort McCoy Airport WI

  • Tonight

    Tonight: Mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Patchy fog before 7am. Otherwise, partly sunny, with a high near 68. Light southeast wind.

    High: 68 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

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

    Low: 52 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 70. Light and variable wind.

    High: 70 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 67. Calm wind becoming southeast 5 to 8 mph in the morning.

    High: 67 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 50. Light southeast wind.

    Low: 50 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly cloudy, with a high near 67. Calm wind.

    High: 67 °F

    Mostly Cloudy

  • Sunday Night

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

    Low: 50 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 47. Calm wind.
Thursday
Patchy fog before 7am. Otherwise, partly sunny, with a high near 68. Light southeast wind.
Thursday Night
Mostly cloudy, with a low around 52. Calm wind.
Friday
Partly sunny, with a high near 70. Light and variable wind.
Friday Night
Mostly cloudy, with a low around 48. Calm wind.
Saturday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 67. Calm wind becoming southeast 5 to 8 mph in the morning.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 50. Light southeast wind.
Sunday
Mostly cloudy, with a high near 67. Calm wind.
Sunday Night
Mostly cloudy, with a low around 50. Calm wind.
Monday
Mostly sunny, with a high near 72. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 54. Light south wind.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 69. South wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 54. Southeast wind 5 to 9 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 65. Northwest wind 6 to 9 mph, with gusts as high as 21 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:
1:21 pm CDT Sep 23, 2026
Forecast Valid:
3pm CDT Sep 23, 2026-6pm CDT Sep 30, 2026
 
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Additional Resources

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Chance of Precipitation