Great Lakes Forecast
Issued by NWS
Issued by NWS
599 FZUS61 KBUF 160802 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 402 AM EDT Thu Jul 16 2026 SLZ022-024-161500- Saint Lawrence River from Cape Vincent to Saint Regis 402 AM EDT Thu Jul 16 2026 .TODAY...Southwest winds 10 knots or less becoming northwest 10 to 15 knots. Smoke. .TONIGHT...Northwest winds 10 knots or less. Smoke in the evening. .FRIDAY...Northwest winds less than 10 knots becoming west. Sunny. .FRIDAY NIGHT...Southwest winds 10 knots or less becoming south. A chance of showers overnight. .SATURDAY...South winds 5 to 10 knots becoming northwest. Showers with a chance of thunderstorms. .SUNDAY...Northwest winds 5 to 10 knots becoming light and variable. Mainly clear. .MONDAY...Southwest winds 10 knots or less becoming south. A chance of showers Monday night. Winds and waves higher in and near thunderstorms. $$