Current conditions at

Sparta, Sparta / Fort McCoy Airport (KCMY)

Lat: 43.96°NLon: 90.74°WElev: 837ft.

Fair

81°F

27°C

Humidity 74%
Wind Speed Calm
Barometer 29.85 in (1010.3 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 22 Jun 6:55 am CDT
Extended Forecast for

2 Miles N Ontario WI

Heat Advisory June 22, 07:34am until June 23, 07:00am
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 22, 07:34am until June 23, 07:00am

    NOW until 7:00am Mon

    Heat Advisory

  • Today

    High: 94 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 76. Breezy, with a south wind 11 to 17 mph, with gusts as high as 30 mph.

    Low: 76 °F

    Clear and
    Breezy then
    Mostly Clear

  • Monday

    Monday: Showers and thunderstorms likely between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm.  Mostly sunny, with a high near 90. Heat index values as high as 95. Southwest wind 10 to 13 mph, with gusts as high as 24 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Mostly Sunny
    then T-storms
    Likely

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 4am, then showers likely.  Low around 66. West wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Showers

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 10am.  Mostly cloudy, with a high near 79. Light and variable wind.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 79 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm.  Low around 63. Calm wind.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 63 °F

    Showers
    Likely then
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm.  High near 80. Light and variable wind becoming south around 6 mph in the morning.  Chance of precipitation is 90%.

    High: 80 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm.  Low around 65. South wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 80%.

    Low: 65 °F

    Showers

Detailed Forecast

Today
Sunny, with a high near 94. Heat index values as high as 103. Breezy, with a south wind 13 to 21 mph, with gusts as high as 32 mph.
Tonight
Mostly clear, with a low around 76. Breezy, with a south wind 11 to 17 mph, with gusts as high as 30 mph.
Monday
Showers and thunderstorms likely between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly sunny, with a high near 90. Heat index values as high as 95. Southwest wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and possibly a thunderstorm before 4am, then showers likely. Low around 66. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers likely, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 79. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm. Low around 63. Calm wind. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm. High near 80. Light and variable wind becoming south around 6 mph in the morning. Chance of precipitation is 90%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 65. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Thursday
Showers and possibly a thunderstorm. High near 79. Southeast wind 3 to 7 mph. Chance of precipitation is 80%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. Southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.
Friday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82. Calm wind becoming southwest around 6 mph in the afternoon.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Light south wind.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Calm wind becoming south 5 to 7 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Ontario WI
 43.75°N 90.58°W
5:29 am CDT Jun 22, 2025
7am CDT Jun 22, 2025-6pm CDT Jun 28, 2025
 
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Additional Resources

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