Great Lakes Forecast
Issued by NWS
Issued by NWS
322 FZUS61 KBUF 040803 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 403 AM EDT Sun Oct 4 2026 SLZ022-024-041500- Saint Lawrence River from Cape Vincent to Saint Regis 403 AM EDT Sun Oct 4 2026 .TODAY...Southeast winds 10 knots or less becoming south 10 to 15 knots. Partly sunny this morning, then becoming mostly cloudy. .TONIGHT...South winds 5 to 15 knots becoming west. A chance of showers in the evening, then showers likely after midnight. A chance of showers late. .MONDAY...West winds 5 to 15 knots becoming northwest. Mostly sunny in the morning, then becoming partly sunny. .MONDAY NIGHT...Northwest winds 5 to 15 knots becoming west. Becoming mainly clear. .TUESDAY...West winds 10 knots or less becoming south 10 to 15 knots. Mainly clear, then becoming partly cloudy. .WEDNESDAY...South winds 5 to 15 knots becoming southwest. A chance of showers. .THURSDAY...Southwest winds 10 knots or less becoming west. A chance of showers. $$