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.

Light Rain Fog/Mist

58°F

14°C

Humidity 98%
Wind Speed Calm
Barometer 30.29 in (1026.0 mb)
Dewpoint 58°F (14°C)
Visibility 6.00 mi
Last update 25 Sep 1:55 am CDT
Extended Forecast for

4 Miles NE Sparta / Fort McCoy Airport WI

  • Overnight

    Overnight: Scattered showers before 4am. Patchy fog after 4am. Otherwise, cloudy, with a low around 55. Calm wind. Chance of precipitation is 30%.

    Low: 55 °F

    Scattered
    Showers and
    Patchy Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 70. East wind 3 to 7 mph.

    High: 70 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48. East wind around 6 mph becoming calm after midnight.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 68. Calm wind becoming southeast 5 to 7 mph in the morning.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 66. Calm wind.

    High: 66 °F

    Slight Chance
    Showers

  • Sunday Night

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

    Low: 52 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 71. Calm wind.

    High: 71 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Overnight
Scattered showers before 4am. Patchy fog after 4am. Otherwise, cloudy, with a low around 55. Calm wind. Chance of precipitation is 30%.
Friday
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 70. East wind 3 to 7 mph.
Friday Night
Partly cloudy, with a low around 48. East wind around 6 mph becoming calm after midnight.
Saturday
Mostly sunny, with a high near 68. Calm wind becoming southeast 5 to 7 mph in the morning.
Saturday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 51. Calm wind.
Sunday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 66. Calm wind.
Sunday Night
Mostly cloudy, with a low around 52. Calm wind.
Monday
Mostly sunny, with a high near 71. Calm wind.
Monday Night
Partly cloudy, with a low around 53. Calm wind.
Tuesday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 68. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 54. Light south wind. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 68. West wind 3 to 6 mph.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 52. Calm wind.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 68. Calm wind becoming southwest 5 to 7 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Sparta / Fort McCoy Airport WI
 44.01°N 90.69°W
Last Update:
1:26 am CDT Sep 25, 2026
Forecast Valid:
2am CDT Sep 25, 2026-6pm CDT Oct 1, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation