


Great Lakes Forecast
Issued by NWS
Issued by NWS
353 FZUS61 KBUF 292002 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 402 PM EDT Fri Aug 29 2025 SLZ022-024-300300- Saint Lawrence River from Cape Vincent to Saint Regis 402 PM EDT Fri Aug 29 2025 .TONIGHT...West winds 10 knots or less. A chance of showers early. .SATURDAY...West winds 10 knots or less becoming northwest. A chance of showers in the morning. A chance of showers late. .SATURDAY NIGHT...West winds less than 10 knots. Becoming mainly clear. .SUNDAY...Light and variable winds. Sunny. .SUNDAY NIGHT...Northwest winds less than 10 knots. Mainly clear. .MONDAY...Light and variable winds. Mainly clear, then becoming partly cloudy. .TUESDAY...Light and variable winds. Partly cloudy. .WEDNESDAY...South winds 5 to 10 knots. A chance of showers Wednesday night. $$