FZUS61 KBUF 251402 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1002 AM EDT Sat Oct 25 2025 SLZ022-024-252100- Saint Lawrence River from Cape Vincent to Saint Regis 1002 AM EDT Sat Oct 25 2025 .REST OF TODAY...Northwest winds 10 knots or less. Partly sunny late this morning, then becoming mostly cloudy. .TONIGHT...Northwest winds 5 to 10 knots becoming north. Mostly cloudy. .SUNDAY...Northwest winds 10 knots or less becoming north. Partly sunny. .SUNDAY NIGHT...North winds less than 10 knots. Partly to mostly cloudy. .MONDAY...North winds 10 knots or less becoming northeast. Partly cloudy. .TUESDAY...Northeast winds 10 knots or less. Partly cloudy. .WEDNESDAY...Northeast winds 10 knots or less. A chance of rain showers Wednesday night. $$