Strong Storms and Heavy Rain Threaten Quebec This Weekend

Strong Storms and Heavy Rain Threaten Quebec This Weekend

Strong Storms and Heavy Rain Threaten Quebec This Weekend

Quebec is heading into a very unsettled weekend, and the weather is shaping up to be quite a story. After a stretch of calmer days, storm activity is expected to make a comeback, with heavy rain, thunderstorms, and even a risk of strong cells moving across much of the province. Let’s walk through what’s coming and when.

The shift began Friday evening, when a low-pressure system pushed clouds into western Quebec. Areas like Abitibi and the north of Saguenay saw the first signs, with light rain already falling while the rest of the province still enjoyed clearer skies. But that calm won’t last long.

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Saturday starts with a mixed bag. In Abitibi-Témiscamingue, Jamésie, and along the Côte-Nord, rain will be more established. Meanwhile, southern Quebec, including Montreal, could still see a pretty decent day with sunshine peeking through the clouds and even summer-like warmth pushing temperatures close to 30 degrees. But despite that pleasant start, thunderstorms are expected to bubble up across several regions—Abitibi, Outaouais, the Laurentians, Saguenay, and as far as Beauce and the Bas-Saint-Laurent. While not particularly violent, these storms will remind everyone that summer weather can change in a heartbeat.

By Sunday, the picture turns much darker. Gray skies are forecast to spread across nearly the entire province. Rain will stretch along the Saint Lawrence River corridor, from Montreal all the way to the Basse-Côte-Nord. Heavier downpours are likely around Quebec City and Saguenay, with rainfall totals reaching 30 to 40 millimeters in some places. The storm risk increases again, this time covering the Saint Lawrence Valley, Saguenay, and eastern Quebec. Even if the available atmospheric energy is relatively low, the conditions are still ripe for storms that could linger.

Meteorologists warn that the real concern isn’t just thunder and lightning, but the potential for prolonged rainfall. The cold front driving this weather system is moving slowly, and in some areas it could almost stall. That means repeated heavy showers could pass over the same regions, raising the risk of localized flooding. Gusty winds may also accompany these storms, especially by late afternoon and evening on Sunday, with Estrie, Beauce, Montérégie, and possibly the Capitale-Nationale seeing the brunt of the activity.

Temperatures will also take a dive once the system passes. Saturday marks the warm peak, but by early next week, daytime highs in southern Quebec may barely scrape past 20 degrees. It will feel like an early hint of autumn after a summer-like weekend.

In short, Quebecers should brace for a highly active weather stretch. From scattered Saturday storms to a full Sunday of unsettled skies, umbrellas will be essential, and caution is advised on the roads due to possible downpours and flash flooding. The weekend might not bring the most violent thunderstorms, but it will certainly be one where the weather demands attention.

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