


Great Lakes Forecast
Issued by NWS
Issued by NWS
957 FZUS61 KBUF 131401 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1001 AM EDT Tue May 13 2025 SLZ022-024-132100- Saint Lawrence River from Cape Vincent to Saint Regis 1001 AM EDT Tue May 13 2025 .THIS AFTERNOON...East winds 5 to 10 knots becoming southeast. Mostly sunny, then becoming partly sunny. .TONIGHT...South winds 10 knots or less becoming southeast. Mostly cloudy. .WEDNESDAY...Southeast winds 10 knots or less. A chance of showers. .WEDNESDAY NIGHT...Southeast winds less than 10 knots. A chance of showers in the evening. .THURSDAY...Light and variable winds. A chance of showers. .FRIDAY...Southeast winds 10 knots or less becoming south. Showers with a chance of thunderstorms during the day, then showers Friday night. .SATURDAY...South winds 5 to 10 knots becoming southwest. Showers likely. Winds and waves higher in and near thunderstorms. $$