Great Lakes Forecast
Issued by NWS
Issued by NWS
088 FZUS61 KBUF 260803 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 402 AM EDT Sun Apr 26 2026 SLZ022-024-261500- Saint Lawrence River from Cape Vincent to Saint Regis 402 AM EDT Sun Apr 26 2026 .TODAY...Light and variable winds. Sunny. .TONIGHT...Northeast winds less than 10 knots. Clear. .MONDAY...Light and variable winds. Sunny. .MONDAY NIGHT...Light and variable winds becoming south 5 to 10 knots. Mainly clear in the evening, then becoming partly cloudy. .TUESDAY...South winds 10 to 15 knots. A chance of showers. .WEDNESDAY...South winds 10 knots or less becoming southwest. Showers likely. .THURSDAY...West winds 5 to 10 knots becoming northwest. Rain showers likely during the day, then a chance of rain showers Thursday night. $$