Great Lakes Forecast
Issued by NWS
Issued by NWS
124 FZUS61 KBUF 100802 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 402 AM EDT Fri Jul 10 2026 SLZ022-024-101500- Saint Lawrence River from Cape Vincent to Saint Regis 402 AM EDT Fri Jul 10 2026 .TODAY...North winds less than 10 knots. Mostly sunny. .TONIGHT...North winds less than 10 knots. Mainly clear in the evening, then becoming partly cloudy. .SATURDAY...Northeast winds less than 10 knots becoming north. Sunny. .SATURDAY NIGHT...North winds less than 10 knots. Clear. .SUNDAY...Light and variable winds. Mainly clear. .MONDAY...Southwest winds 5 to 10 knots. Mainly clear, then becoming partly cloudy. .TUESDAY...Southwest winds 10 to 15 knots becoming west. A chance of showers Tuesday night. $$