


Great Lakes Forecast
Issued by NWS
Issued by NWS
671 FZUS61 KBUF 120801 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 401 AM EDT Mon May 12 2025 SLZ022-024-121500- Saint Lawrence River from Cape Vincent to Saint Regis 401 AM EDT Mon May 12 2025 .TODAY...South winds 10 knots or less becoming southwest. Sunny. .TONIGHT...Southwest winds less than 10 knots. Mainly clear in the evening, then becoming partly cloudy. .TUESDAY...East winds less than 10 knots becoming south. Partly to mostly sunny. .TUESDAY NIGHT...South winds less than 10 knots becoming southeast. Mostly cloudy. .WEDNESDAY...Southeast winds less than 10 knots. Mostly cloudy. .THURSDAY...Southeast winds less than 10 knots. A chance of showers. .FRIDAY...South winds 5 to 10 knots becoming southwest. Showers likely. $$