FZUS61 KBUF 050844 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 444 AM EDT Thu Sep 5 2024 SLZ022-024-051515- Saint Lawrence River from Cape Vincent to Saint Regis 444 AM EDT Thu Sep 5 2024 .TODAY...South winds 5 to 10 knots. Sunny. .TONIGHT...South winds 10 knots or less. Mainly clear. .FRIDAY...South winds 5 to 15 knots. Mostly sunny. .FRIDAY NIGHT...Southeast winds 5 to 15 knots becoming south. A chance of showers in the evening, then showers likely with a chance of thunderstorms overnight. .SATURDAY...South winds 5 to 15 knots becoming southwest. Showers with a chance of thunderstorms during the day, then showers Saturday night. .SUNDAY...Southwest winds 5 to 15 knots. A chance of showers. .MONDAY...Southwest winds 10 knots or less. Partly cloudy. Winds and waves higher in and near thunderstorms. $$ AR