Weather alerts – Monday, October 12, 2026

Weather alert - Greater Montreal


WEATHER: Bécancour – Villeroy area

special weather statement in effect

Issued: 3:37 PM EDT, Monday, October 12, 2026
Expires: 7:37 AM EDT, Tuesday, October 13, 2026
Urgency: Future
Severity: Minor

A rainy day on Tuesday

What: Rainfall amounts up to 30 to 50 millimetres causing ponding on roads and in low-lying areas.

When: Tuesday afternoon through Tuesday night

Where: In the Bois-Francs and Eastern Townships regions

Additional information:
A nearly stationary warm front associated with a low pressure system sliding south of the border will bring bands of heavy rain to our regions.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or post reports on social media using #QCStorm.


RAINFALL: Montréal Island area

yellow warning – rainfall – in effect

Issued: 3:32 PM EDT, Monday, October 12, 2026
Expires: 7:32 AM EDT, Tuesday, October 13, 2026
Urgency: Future
Severity: Moderate
Impact Level: Moderate
Forecast Confidence: High

What: Rainfall amounts may reach 40 to 60 millimetres and cause water pooling on roads and in low-lying areas.

When: Tuesday afternoon through Tuesday night

Where: Montreal, Vaudreuil and Montérégie

Additional information:
A nearly stationary warm front associated with a low pressure system sliding south of the border will bring bands of heavy rain to our regions.

Water will likely pool on roads and in low-lying areas. Visibility will likely be suddenly reduced at times.

Rainfall warnings are issued when significant impacts are expected due to rainfall amounts.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or post reports on social media using #QCStorm.

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