Current conditions at
Sparta, Sparta / Fort McCoy Airport (KCMY)
Lat: 43.96°NLon: 90.74°WElev: 837ft.
Fair
65°F
18°C
| Humidity | 61% |
| Wind Speed | S 9 mph |
| Barometer | 29.89 in (1012.2 mb) |
| Dewpoint | 51°F (11°C) |
| Visibility | 9.00 mi |
| Last update | 11 Oct 7:55 am CDT |
Extended Forecast for
Ontario WI
Today
High: 86 °F
Sunny
Tonight
Low: 66 °F
Increasing
CloudsColumbus Day
High: 86 °F
Decreasing
CloudsMonday Night
Low: 61 °F
Slight Chance
ShowersTuesday
High: 73 °F
Mostly Sunny
Tuesday Night
Low: 49 °F
Partly Cloudy
Wednesday
High: 68 °F
Partly Sunny
Wednesday Night
Low: 46 °F
Slight Chance
ShowersThursday
High: 65 °F
Chance
Showers
Detailed Forecast
Today
Sunny, with a high near 86. South wind 7 to 11 mph, with gusts as high as 22 mph.
Tonight
Increasing clouds, with a low around 66. South wind 5 to 7 mph, with gusts as high as 20 mph.
Columbus Day
Mostly cloudy, then gradually becoming sunny, with a high near 86. Southwest wind 5 to 9 mph.
Monday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 61. Calm wind becoming west around 5 mph after midnight.
Tuesday
Mostly sunny, with a high near 73. Northwest wind around 7 mph.
Tuesday Night
Partly cloudy, with a low around 49. Calm wind.
Wednesday
Partly sunny, with a high near 68. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 46. Calm wind.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 65. Light east wind becoming southeast 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night
A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 42. Calm wind becoming northwest 5 to 9 mph after midnight. Winds could gust as high as 23 mph.
Friday
A 20 percent chance of showers. Partly sunny, with a high near 58. Breezy, with a northwest wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 32. Northwest wind 9 to 14 mph becoming light after midnight. Winds could gust as high as 25 mph.
Saturday
Mostly sunny, with a high near 55. Calm wind becoming northwest 5 to 7 mph in the morning.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Ontario WI
43.73°N 90.58°W
43.73°N 90.58°W
6:46 am CDT Oct 11, 2026
8am CDT Oct 11, 2026-6pm CDT Oct 17, 2026
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