Hazardous Weather Conditions
Current conditions at
Sparta, Sparta / Fort McCoy Airport (KCMY)
Lat: 43.96°NLon: 90.74°WElev: 837ft.
A Few Clouds
84°F
29°C
| Humidity | 83% |
| Wind Speed | Calm |
| Barometer | 29.81 in (1009.0 mb) |
| Dewpoint | 78°F (26°C) |
| Visibility | 10.00 mi |
| Heat Index | 95°F (35°C) |
| Last update | 30 Jun 9:55 pm CDT |
Extended Forecast for
2 Miles SSE Ontario WI
Heat Advisory July 1, 01:00pm until July 1, 08:00pm
Tonight
Low: 74 °F
Slight Chance
T-storms then
T-storms
LikelyWednesday
High: 89 °F
T-storms
Likely then
Slight Chance
T-stormsWednesday Night

Low: 71 °F
T-storms
Thursday
High: 90 °F
Chance
T-storms then
Showers
LikelyThursday Night
Low: 69 °F
Chance
T-storms then
ShowersFriday

High: 89 °F
Showers
LikelyFriday Night

Low: 67 °F
Showers
LikelyIndependence Day

High: 84 °F
Chance
T-stormsSaturday Night

Low: 64 °F
Showers
Likely
Detailed Forecast
Tonight
Showers and thunderstorms likely, mainly after 5am. Increasing clouds, with a low around 74. Southwest wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and thunderstorms likely, mainly before noon. Mostly cloudy, then gradually becoming sunny, with a high near 89. Heat index values as high as 96. Light and variable wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms. Low around 71. South wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 90. Heat index values as high as 96. Southwest wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 69. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 67. Light and variable wind. Chance of precipitation is 60%.
Independence Day
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Calm wind becoming east around 5 mph in the afternoon.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 60%.
Sunday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 83. Calm wind. Chance of precipitation is 20%.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 63. Calm wind.
Monday
Mostly sunny, with a high near 86. Calm wind.
Monday Night
Partly cloudy, with a low around 64. Calm wind.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 86. Calm wind.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles SSE Ontario WI
43.69°N 90.59°W
43.69°N 90.59°W
9:27 pm CDT Jun 30, 2026
10pm CDT Jun 30, 2026-6pm CDT Jul 7, 2026



