


Great Lakes Forecast
Issued by NWS
Issued by NWS
765 FZUS61 KBUF 032002 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 402 PM EDT Fri Oct 3 2025 SLZ022-024-040300- Saint Lawrence River from Cape Vincent to Saint Regis 402 PM EDT Fri Oct 3 2025 .TONIGHT...Southwest winds 10 knots or less. Clear early, then becoming partly cloudy. .SATURDAY...Southwest winds less than 10 knots. Partly to mostly sunny. .SATURDAY NIGHT...Southwest winds less than 10 knots. Mainly clear. .SUNDAY...South winds 10 knots or less becoming southwest. Sunny. .SUNDAY NIGHT...Southwest winds 10 knots or less becoming south. Mainly clear. .MONDAY...South winds 5 to 10 knots becoming southwest. A chance of showers Monday night. .TUESDAY...Southwest winds 5 to 10 knots becoming northwest. Showers. .WEDNESDAY...Northwest winds 10 knots or less becoming north. A chance of rain showers during the day. $$