Owen Sound, Ontario, is waking up to cloudy skies on Tuesday, July 28, 2026, though the worst of the thunderstorm activity passed overnight. Environment Canada says the morning commute could still be affected by cloudy conditions, with a 20 percent chance of showers this afternoon, before skies become partly cloudy late this evening and a stretch of sunny, warm weather takes hold through the rest of the week.
At 11:00 a.m., the temperature at Wiarton Airport was 19.4°C with humidity at 93 percent and a northeast wind at 17 km/h. A thunderstorm with heavy rain rolled through late Monday night, dropping visibility to just 1.6 kilometres and generating wind gusts up to 42 km/h. That system has since moved on, and no weather alerts are in effect for the Owen Sound, Blue Mountains, and Northern Grey County area as of late Tuesday morning.
For boaters on Georgian Bay, a Strong Wind Warning remains active. North winds of 15 knots are forecast to increase to 20 near noon, then diminish to 15 knots Wednesday afternoon and ease to northeast 10 knots by Wednesday evening. Waves of 0.5 to 1.5 metres are expected, making conditions choppy on the bay into midweek.
The good news for residents is a clearing trend that begins tonight. Environment Canada says Wednesday will be mainly sunny, with Thursday and Friday sunny. Highs will climb steadily, from 24°C on Wednesday to 25°C on Thursday and 28°C on Friday. Humidity levels are expected to drop, offering a break from the muggy conditions felt earlier this week, when Monday’s humidex reached 38.
Looking ahead to the weekend, the forecast suggests a return to unsettled weather. Saturday, August 1, brings cloudy skies with a 60 percent chance of showers and a high of 23°C. Sunday is similarly overcast with a 30 percent chance of showers and a high of 21°C. For the latest updates, check the Environment Canada forecast.
