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Kingston to Cornwall

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 20 July 2026

Tonight and Tuesday.

Wind southwest 10 knots becoming light this evening then becoming south 10 early Tuesday morning. Wind increasing to southwest 15 Tuesday afternoon.

Scattered showers Tuesday late in the day with a risk of thunderstorms.

Extended Forecast

Issued 06:30 PM EDT 20 July 2026
Wednesday Wind light becoming southwest 15 knots in the morning then diminishing to light late in the day.
Thursday Wind light.
Friday Wind light.

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Map of St. Lawrence - St. Lawrence River marine weather areas Miramichi North Cape Port Menier Roberval Airport Normandin Mistook Jonquière CFB Bagotville Cap-Chat Île Bicquette Charlo North Bay Airport Yarmouth Airport Brier Island St. Stephen Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Miscou Island Kouchibouguac Kouchibouguac Grand Manan Fundy Park (Alma) Bas Caraquet Bathurst Airport Lac Saint-Pierre Pointe-Noire Île-d'Orléans - Quai de St-Jean Pointe-des-Monts L'Assomption Sept-Îles Airport Pointe Claveau Pointe de l'Islet Trois-Rivières Airport L'Isle-aux-Grues Deschambault Île Rouge Montréal-Trudeau Int'l Airport Montréal Metropolitain Airport Lac Memphrémagog Sainte-Anne-de-Bellevue Cap-Rouge Saint-Anicet Baie-Comeau Airport La Pocatière Pointe-au-Père New Carlisle Mont-Joli Airport Gaspé Airport Lake Nipissing - 45152 Rivière-la-Madeleine Beauport Cap-d'Espoir
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land station Land Station
Ice Conditions

There is no ice forecast issued for this area.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 20 July 2026 Tonight and Tuesday At 6:30 p.m. EDT tonight low 995 mb located over northern Ontario.
By 6:30 p.m. EDT Tuesday low 994 mb located over northern Quebec.

At 6:30 p.m. EDT tonight trough from low located over western
Lake Superior.
By 6:30 p.m. EDT Tuesday trough from low located over North Channel.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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