Great Lakes Forecast
Issued by NWS
Issued by NWS
760 FZUS61 KBUF 251403 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1003 AM EDT Fri Sep 25 2026 SLZ022-024-252100- Saint Lawrence River from Cape Vincent to Saint Regis 1003 AM EDT Fri Sep 25 2026 .THIS AFTERNOON...Northeast winds 5 to 10 knots. Sunny. .TONIGHT...Northeast winds 10 knots or less. Mainly clear early, then becoming mostly cloudy. .SATURDAY...Northeast winds 5 to 10 knots. Partly sunny in the morning, then becoming mostly cloudy. .SATURDAY NIGHT...Northeast winds 5 to 15 knots. Mostly cloudy. .SUNDAY...Northeast winds 5 to 15 knots. Mostly cloudy. .MONDAY...Northeast winds 10 knots or less. Mostly cloudy. .TUESDAY...Light and variable winds. Partly to mostly cloudy. $$