Hazardous Weather Conditions
Current conditions at
Sparta, Sparta / Fort McCoy Airport (KCMY)
Lat: 43.96°NLon: 90.74°WElev: 837ft.
Fair
69°F
21°C
| Humidity | 82% |
| Wind Speed | Calm |
| Barometer | 30.23 in (1024.0 mb) |
| Dewpoint | 63°F (17°C) |
| Visibility | 9.00 mi |
| Last update | 2 Aug 7:55 pm CDT |
Extended Forecast for
Ontario WI
Tonight
Low: 54 °F
Areas Smoke
then Patchy
FogSunday
High: 80 °F
Patchy Fog
then Areas
SmokeSunday Night
Low: 57 °F
Areas Smoke
Monday
High: 81 °F
Areas Smoke
then Mostly
SunnyMonday Night
Low: 60 °F
Partly Cloudy
Tuesday
High: 83 °F
Mostly Sunny
Tuesday Night
Low: 62 °F
Mostly Clear
Wednesday
High: 87 °F
Mostly Sunny
Wednesday Night
Low: 67 °F
Slight Chance
T-storms then
Chance
Showers
Detailed Forecast
Tonight
Areas of smoke before 11pm, then areas of smoke after 2am. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 54. Calm wind.
Sunday
Areas of smoke before 8am, then areas of smoke after noon. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 80. Calm wind becoming south around 6 mph in the afternoon.
Sunday Night
Areas of smoke before 4am. Mostly clear, with a low around 57. Calm wind.
Monday
Areas of smoke between 7am and 8am. Mostly sunny, with a high near 81. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 60. Calm wind.
Tuesday
Mostly sunny, with a high near 83. Calm wind becoming southeast around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 62. Light southeast wind.
Wednesday
Mostly sunny, with a high near 87. Calm wind becoming south 5 to 7 mph in the morning.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 67. South wind around 5 mph becoming calm in the evening.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. South wind 3 to 7 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. South wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 89. South wind 3 to 8 mph.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69. South wind around 6 mph.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. South wind 6 to 8 mph.
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
5:59 pm CDT Aug 2, 2025
8pm CDT Aug 2, 2025-6pm CDT Aug 9, 2025
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