Great Lakes Forecast
Issued by NWS
Issued by NWS
488 FZUS61 KBUF 070803 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 402 AM EDT Sun Jun 7 2026 SLZ022-024-071500- Saint Lawrence River from Cape Vincent to Saint Regis 402 AM EDT Sun Jun 7 2026 .TODAY...Northwest winds 5 to 10 knots becoming north. Showers likely this morning. .TONIGHT...North winds less than 10 knots. Partly cloudy. .MONDAY...Light and variable winds. Sunny. .MONDAY NIGHT...Light and variable winds. Clear. .TUESDAY...South winds less than 10 knots. A chance of showers and thunderstorms Tuesday night. .WEDNESDAY...South winds 10 knots or less becoming southwest. Showers with a chance of thunderstorms. .THURSDAY...Southwest winds 10 knots or less. A chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$