


Great Lakes Forecast
Issued by NWS
Issued by NWS
410 FZUS61 KBUF 090202 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1002 PM EDT Fri Aug 8 2025 SLZ022-024-090900- Saint Lawrence River from Cape Vincent to Saint Regis 1002 PM EDT Fri Aug 8 2025 .REST OF TONIGHT...South winds 10 knots or less. Mainly clear late this evening, then becoming partly cloudy. .SATURDAY...South winds 5 to 10 knots becoming southwest. Mostly sunny. .SATURDAY NIGHT...Southwest winds 10 knots or less becoming south. Partly cloudy. .SUNDAY...South winds 10 knots or less becoming southwest. Mostly sunny. .SUNDAY NIGHT...Southwest winds less than 10 knots becoming south. Partly cloudy. .MONDAY...Southwest winds 10 knots or less becoming south. Mainly clear. .TUESDAY...Southwest winds 5 to 10 knots. A chance of showers Tuesday night. .WEDNESDAY...Southwest winds 10 knots or less. A chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$