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

51°F

11°C

Humidity 98%
Wind Speed Calm
Barometer 30.06 in (1018.2 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 6 Aug 12:55 am CDT
Extended Forecast for

5 Miles S Cashton WI

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly clear, with a low around 54. Calm wind.

    Low: 54 °F

    Patchy Fog

  • Thursday

    Thursday: Areas of fog before 9am. Otherwise, sunny, with a high near 81. Light south wind.

    High: 81 °F

    Areas Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. Light south wind.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 83. Light south wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 83 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 58. Southwest wind 5 to 7 mph becoming light and variable in the evening. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 82. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. Southwest wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Partly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 84 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 64. Calm wind. Chance of precipitation is 60%.

    Low: 64 °F

    Slight Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly clear, with a low around 54. Calm wind.
Thursday
Areas of fog before 9am. Otherwise, sunny, with a high near 81. Light south wind.
Thursday Night
Mostly clear, with a low around 59. Light south wind.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 83. Light south wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Friday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 58. Southwest wind 5 to 7 mph becoming light and variable in the evening. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 82. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. Southwest wind around 5 mph becoming calm in the evening.
Sunday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 64. Calm wind. Chance of precipitation is 60%.
Monday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 83. East wind 5 to 7 mph becoming west in the afternoon. Chance of precipitation is 60%.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 61. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 82. Light northeast wind.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 60. Calm wind.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80. Light and variable wind.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Cashton WI
 43.67°N 90.77°W
Last Update:
1:26 am CDT Aug 6, 2026
Forecast Valid:
2am CDT Aug 6, 2026-6pm CDT Aug 12, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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