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

62°F

17°C

Humidity 84%
Wind Speed Calm
Barometer 29.91 in (1013.1 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 20 Jun 8:55 pm CDT
Extended Forecast for

4 Miles WNW Cashton WI

  • Tonight

    Tonight: Partly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers, mainly after 2pm. Mostly cloudy, with a high near 74. Calm wind becoming east 5 to 7 mph in the morning.

    High: 74 °F

    Partly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 53. East wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77. Northeast wind around 6 mph.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53. Light and variable wind.

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 77. Light and variable wind.

    High: 77 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 56. South wind 3 to 5 mph. Chance of precipitation is 90%.

    Low: 56 °F

    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 74. Southwest wind 5 to 7 mph becoming northwest in the afternoon.

    High: 74 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 53. North wind around 6 mph becoming calm in the evening.

    Low: 53 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 51. Calm wind.
Sunday
A 30 percent chance of showers, mainly after 2pm. Mostly cloudy, with a high near 74. Calm wind becoming east 5 to 7 mph in the morning.
Sunday Night
A 20 percent chance of showers before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 53. East wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 77. Northeast wind around 6 mph.
Monday Night
Partly cloudy, with a low around 53. Light and variable wind.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 77. Light and variable wind.
Tuesday Night
Showers and possibly a thunderstorm. Low around 56. South wind 3 to 5 mph. Chance of precipitation is 90%.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 74. Southwest wind 5 to 7 mph becoming northwest in the afternoon.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 53. North wind around 6 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 76. Calm wind becoming north around 5 mph.
Thursday Night
Partly cloudy, with a low around 53. Calm wind.
Friday
Mostly sunny, with a high near 79. Calm wind.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 57. Calm wind.
Saturday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 80. Southeast wind 3 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Cashton WI
 43.78°N 90.85°W
Last Update:
7:21 pm CDT Jun 20, 2026
Forecast Valid:
9pm CDT Jun 20, 2026-6pm CDT Jun 27, 2026
 
Forecast Discussion
 
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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