Ontario

Muggy With Thunderstorm Risk for Owen Sound This Week

By

boringnews
August 31, 2026 5:44 pm

Owen Sound, Ontario residents should keep umbrellas handy as Environment Canada forecasts a showery and humid start to the week, with a risk of thunderstorms continuing through Tuesday evening.

As of 5:00 p.m. EDT on Monday, August 31, the Environment Canada station at Wiarton Airport reported mostly cloudy skies, a temperature of 23.2°C, and 91 percent humidity, making it feel like 32.

Monday night brings a risk of thunderstorms and an overnight low of 19°C. Tuesday, September 1, will be mainly cloudy with a 30 percent chance of morning showers, a high of 27°C, and a humidex of 35, meaning it will feel especially muggy outdoors.

Wednesday holds the highest chance of rain this week at 60 percent, with cloudy skies and a high of 26°C. Those planning outdoor activities mid-week are advised to monitor forecasts closely.

The marine forecast for Georgian Bay warns of showers ending Tuesday morning with a risk of thunderstorms, scattered showers Tuesday evening, and fog patches. Winds will shift from southeast 15 knots to south 10, then become light, before turning west 10 Tuesday morning and backing to south 10 Tuesday evening.

Conditions are expected to improve later in the week, with clearing by Thursday and a mix of sun and cloud returning for the weekend. Saturday, September 5, is forecast to reach 23°C, while Sunday, September 6, will see a high of 22°C, close to seasonal normals for early September.

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