Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

45°F

7°C

Humidity 97%
Wind Speed Calm
Barometer 29.94 in (1014.2 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 21 Jun 5:55 am CDT
Extended Forecast for

5 Miles WSW Ontario WI

  • Today

    Today: A 20 percent chance of showers after 3pm.  Mostly cloudy, with a high near 73. Calm wind becoming southeast 5 to 8 mph in the morning.

    High: 73 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers before 9pm.  Mostly cloudy, with a low around 51. Southeast wind around 5 mph becoming calm  in the evening.

    Low: 51 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77. Northeast wind 5 to 7 mph.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52. North wind around 5 mph becoming calm  in the evening.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. Light south wind.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm.  Low around 57. Southwest wind around 6 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 76. West wind 5 to 7 mph.

    High: 76 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 75. Calm wind becoming northwest around 5 mph in the morning.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of showers after 3pm. Mostly cloudy, with a high near 73. Calm wind becoming southeast 5 to 8 mph in the morning.
Tonight
A 20 percent chance of showers before 9pm. Mostly cloudy, with a low around 51. Southeast wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 77. Northeast wind 5 to 7 mph.
Monday Night
Partly cloudy, with a low around 52. North wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 78. Light south wind.
Tuesday Night
Showers and possibly a thunderstorm. Low around 57. Southwest wind around 6 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 76. West wind 5 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 53. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 75. Calm wind becoming northwest around 5 mph in the morning.
Thursday Night
Mostly clear, 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 and thunderstorms. Partly cloudy, with a low around 57. Calm wind.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. Light southeast wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 22 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Ontario WI
 43.71°N 90.67°W
5:31 am CDT Jun 21, 2026
6am CDT Jun 21, 2026-6pm CDT Jun 27, 2026
 
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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