Cornwall to Montréal - Marine Weather - Environment Canada Environment Canada https://www.weather.gc.ca 2026-06-12T12:10:57Z tag:weather.gc.ca,2013-04-16:20260612121057 https://www.weather.gc.ca/template/gcweb/v15.0.0/assets/wmms-alt.png https://www.weather.gc.ca/template/gcweb/v15.0.0/assets/favicon.ico Copyright 2026, Environment Canada STRONG WIND WARNING IN EFFECT, Cornwall to Montréal 2026-06-12T12:08:00Z 2026-06-12T12:08:00Z Issued 08:08 AM EDT 12 June 2026 tag:weather.gc.ca,2013-04-16:02900_w1:20260612120800 Forecast for Today Tonight and Saturday. - Cornwall to Montréal 2026-06-12T07:00:00Z 2026-06-12T07:00:00Z Wind light increasing to southwest 10 to 15 knots early this morning and to southwest 15 to 25 late this afternoon. Wind diminishing to west 10 to 15 near midnight then increasing to west 15 to 25 near noon Saturday. Wind diminishing to west 10 to 15 Saturday evening. Scattered showers ending early this morning. Showers this afternoon and this evening with a risk of thunderstorms. Fog banks dissipating late this morning. Visibility 1 mile or less in fog banks and as low as 1 mile in showers. <br/>Issued 03:00 AM EDT 12 June 2026 tag:weather.gc.ca,2013-04-16:02900_regular_forecast:20260612070000 Extended Forecast - Cornwall to Montréal 2026-06-12T10:00:00Z 2026-06-12T10:00:00Z Sunday: Wind southwesterly 15 knots increasing to southwest 15 to 25 in the afternoon.<br/>Monday: Wind southwest 15 knots.<br/>Tuesday: Wind southwest 10 to 15 knots.<br/>Issued 06:00 AM EDT 12 June 2026 tag:weather.gc.ca,2013-04-16:02900_extended_forecast:20260612100000