Northumberland Strait - Marine Weather - Environment Canada Environment Canada https://www.weather.gc.ca 2026-06-18T12:57:39Z tag:weather.gc.ca,2013-04-16:20260618125739 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, Northumberland Strait 2026-06-18T13:00:00Z 2026-06-18T13:00:00Z Issued 10:00 AM ADT 18 June 2026 tag:weather.gc.ca,2013-04-16:10900_w1:20260618130000 Forecast for Today Tonight and Friday. - Northumberland Strait 2026-06-18T13:00:00Z 2026-06-18T13:00:00Z Wind light increasing to southeast 15 knots early this evening and to southeast 25 late overnight. Wind diminishing to southeast 15 to 20 Friday morning then becoming southwest 15 Friday afternoon. Periods of rain and fog patches overnight and Friday. Risk of thunderstorms Friday afternoon and evening. <br/>Issued 10:00 AM ADT 18 June 2026 tag:weather.gc.ca,2013-04-16:10900_regular_forecast:20260618130000 Extended Forecast - Northumberland Strait 2026-06-18T06:00:00Z 2026-06-18T06:00:00Z Saturday: Wind variable 10 to 15 knots increasing to northerly 15 to 20 in the afternoon.<br/>Sunday: Wind northeast 15 to 20 knots diminishing to light.<br/>Monday: Wind light.<br/>Issued 03:00 AM ADT 18 June 2026 tag:weather.gc.ca,2013-04-16:10900_extended_forecast:20260618060000