Great Lakes Forecast
Issued by NWS
Issued by NWS
296 FZUS61 KBUF 120810 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 410 AM EDT Tue May 12 2026 SLZ022-024-121500- Saint Lawrence River from Cape Vincent to Saint Regis 410 AM EDT Tue May 12 2026 .TODAY...Light and variable winds becoming west 5 to 10 knots. Sunny. .TONIGHT...Southwest winds 5 to 10 knots becoming southeast. A chance of showers late. .WEDNESDAY...Southeast winds 5 to 15 knots becoming south. Showers. .WEDNESDAY NIGHT...South winds 10 knots or less. Showers. .THURSDAY...Southwest winds less than 10 knots becoming north. Showers. .FRIDAY...North winds 10 knots or less becoming southwest. Partly to mostly cloudy. .SATURDAY...Southwest winds 5 to 15 knots. A chance of showers. $$