Great Lakes Forecast
Issued by NWS
Issued by NWS
567 FZUS61 KBUF 311403 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1003 AM EDT Sat Oct 31 2026 SLZ022-024-312100- Saint Lawrence River from Cape Vincent to Saint Regis 1003 AM EDT Sat Oct 31 2026 .THIS AFTERNOON...West winds 10 knots or less. Sunny. .TONIGHT...Southwest winds less than 10 knots. Becoming mainly clear. .SUNDAY...Southwest winds 10 knots or less. Mostly sunny. .SUNDAY NIGHT...Southwest winds 5 to 10 knots. Mostly cloudy. .MONDAY...Southwest winds 10 knots or less becoming south. Mostly cloudy. .TUESDAY...South winds 10 knots or less. A chance of showers. .WEDNESDAY...South winds 10 to 15 knots. A chance of showers. $$