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.

Thunderstorm Light Rain

66°F

19°C

Humidity 94%
Wind Speed Calm
Barometer 29.98 in (1015.1 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 2 Sep 5:55 am CDT
Extended Forecast for

2 Miles SE Sparta WI

  • Today

    Today: Showers and thunderstorms likely, mainly before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 88. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    T-storms
    Likely then
    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 5am. Increasing clouds, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear
    then Chance
    Showers

  • Thursday

    Thursday: Showers and thunderstorms likely before 2pm, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 87. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 68 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 89. Light south wind. Chance of precipitation is 30%.

    High: 89 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. Calm wind.

    High: 88 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear
    then Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 85. Calm wind.

    High: 85 °F

    Chance
    T-storms

Detailed Forecast

Today
Showers and thunderstorms likely, mainly before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 88. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Increasing clouds, with a low around 67. Calm wind.
Thursday
Showers and thunderstorms likely before 2pm, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 87. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 89. Light south wind. Chance of precipitation is 30%.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67. Calm wind.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. Calm wind.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65. Calm wind.
Sunday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 85. Calm wind.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63. Calm wind.
Labor Day
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. Calm wind becoming southeast around 6 mph in the afternoon.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Southeast wind 3 to 5 mph.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. Southeast wind 6 to 10 mph, with gusts as high as 21 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Sparta WI
 43.93°N 90.78°W
Last Update:
5:46 am CDT Sep 2, 2026
Forecast Valid:
6am CDT Sep 2, 2026-6pm CDT Sep 8, 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