


Great Lakes Forecast
Issued by NWS
Issued by NWS
037 FZUS61 KBUF 170801 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 401 AM EDT Sat May 17 2025 SLZ022-024-171500- Saint Lawrence River from Cape Vincent to Saint Regis 401 AM EDT Sat May 17 2025 .TODAY...South winds 10 knots or less becoming southwest. Showers likely this morning, then showers with a chance of thunderstorms this afternoon. .TONIGHT...Southwest winds 5 to 15 knots. Showers likely with a chance of thunderstorms early, then a chance of showers late in the evening. Showers likely after midnight. .SUNDAY...Southwest winds 5 to 10 knots becoming northwest. Showers. .SUNDAY NIGHT...Northwest winds 5 to 10 knots. Showers in the evening, then a chance of showers overnight. .MONDAY...Northwest winds 5 to 10 knots. A chance of rain showers during the day. .TUESDAY...North winds 10 knots or less becoming northeast. Mostly cloudy. .WEDNESDAY...Northeast winds 5 to 10 knots. A chance of showers during the day, then showers likely Wednesday night. Winds and waves higher in and near thunderstorms. $$