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Weather for Ontario, WIOntario, WI Weather & Current Conditions

54651 Weather (Ontario, WI)

Ontario, WI WeatherCurrent Conditions and Weather for Ontario, Wisconsin
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Clear at Ontario (54651), temperature is 41°F5°C, dew point 37°F3°C, humidity 83%. Wind direction is N at 0 mphat 0 km/h with visibility of 9 mi14 km. Barometric pressure is 30.21 in1023 mb. Last update: 8:58 pm.*
*Time is approximately 8:58 pm Thu, Oct 29, 2026. Time will be within 15 minutes of current local time. Ontario weather forecast data is updated every 15 minutes.

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They talk about big skies in the western United States, and they may indeed have them, but you have never seen such lofty clouds, such towering anvils, as in Iowa in July. ―Bill Bryson
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Ontario WI Weather - 9:58 pm

Ontario Weather Forecast

Weather forecast for: Ontario WI
Last Update: 6:41 pm CDT Oct 29, 2026
Tonight: Mostly clear, with a low around 32. Light and variable wind.
Friday: Mostly sunny, with a high near 57. Calm wind becoming east around 5 mph in the afternoon.
Friday Night: A 30 percent chance of showers, mainly after 4am. Mostly cloudy, with a low around 42. Calm wind.
Saturday: Showers likely, mainly before 1pm. Cloudy, with a high near 59. Southeast wind 3 to 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night: Cloudy, with a low around 46. Calm wind.
Sunday: Partly sunny, with a high near 68. Light and variable wind.
Sunday Night: Mostly cloudy, with a low around 50. Calm wind.
Monday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 66. Light southeast wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 60%.
Monday Night: Showers and possibly a thunderstorm. Low around 55. Southeast wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Tuesday: Showers. High near 68. Southeast wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Tuesday Night: Showers likely. Mostly cloudy, with a low around 52. South wind 5 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Wednesday: Showers likely. Mostly cloudy, with a high near 64. Southwest wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 44. West wind around 5 mph becoming calm in the evening.
Thursday: A 40 percent chance of showers. Mostly cloudy, with a high near 57. North wind 3 to 8 mph.

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