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Current conditions at
Sparta, Sparta / Fort McCoy Airport (KCMY)
Lat: 43.96°NLon: 90.74°WElev: 837ft.
Fair
87°F
31°C
| Humidity | 45% |
| Wind Speed | SW 16 G 26 mph |
| Barometer | 29.93 in (1013.4 mb) |
| Dewpoint | 63°F (17°C) |
| Visibility | 10.00 mi |
| Heat Index | 88°F (31°C) |
| Last update | 4 Oct 1:55 pm CDT |
Extended Forecast for
Ontario WI
This Afternoon
High: 89 °F
Sunny and
BreezyTonight
Low: 62 °F
Mostly Clear
Sunday
High: 83 °F
Sunny and
BreezySunday Night
Low: 53 °F
Chance
T-storms then
ShowersMonday
High: 66 °F
Chance
ShowersMonday Night
Low: 43 °F
Chance
ShowersTuesday
High: 65 °F
Mostly Sunny
Tuesday Night
Low: 37 °F
Mostly Clear
Wednesday
High: 67 °F
Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 89. Breezy, with a south wind 11 to 17 mph, with gusts as high as 28 mph.
Tonight
Mostly clear, with a low around 62. South wind around 11 mph, with gusts as high as 26 mph.
Sunday
Sunny, with a high near 83. Breezy, with a south wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph.
Sunday Night
A chance of showers and thunderstorms before 1am, then showers and possibly a thunderstorm between 1am and 4am, then showers after 4am. Low around 53. South wind 6 to 13 mph becoming west after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A 40 percent chance of showers. Mostly cloudy, with a high near 66. Northwest wind 3 to 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 43. Calm wind.
Tuesday
Mostly sunny, with a high near 65. Calm wind becoming northwest around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 37. Calm wind.
Wednesday
Sunny, with a high near 67. Light southeast wind.
Wednesday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 42. Light southeast wind.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 68. South wind 5 to 9 mph.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 50. South wind around 6 mph.
Friday
Mostly sunny, with a high near 70. Light and variable wind becoming west 5 to 7 mph in the morning.
Additional Forecasts and Information
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Point Forecast:
Ontario WI
43.73°N 90.58°W
43.73°N 90.58°W
1:43 pm CDT Oct 4, 2025
2pm CDT Oct 4, 2025-6pm CDT Oct 10, 2025
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