Great Lakes Forecast
Issued by NWS
Issued by NWS
156 FZUS61 KBUF 040903 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 403 AM EST Wed Nov 4 2026 SLZ022-024-041600- Saint Lawrence River from Cape Vincent to Saint Regis 403 AM EST Wed Nov 4 2026 .TODAY...South winds 10 knots or less becoming southwest. Partly to mostly sunny. .TONIGHT...South winds 5 to 15 knots. A chance of showers after midnight. Showers likely late. .THURSDAY...South winds 5 to 15 knots becoming southwest. Showers. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Mostly cloudy. .FRIDAY...Southwest winds 10 knots or less becoming northeast. A chance of showers Friday night. .SATURDAY...Northeast winds 5 to 10 knots becoming northwest. A chance of rain showers. .SUNDAY...West winds 5 to 10 knots. A chance of rain showers during the day. $$