


Great Lakes Forecast
Issued by NWS
Issued by NWS
988 FZUS61 KBUF 170202 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1002 PM EDT Thu Oct 16 2025 SLZ022-024-170900- Saint Lawrence River from Cape Vincent to Saint Regis 1002 PM EDT Thu Oct 16 2025 .OVERNIGHT...North winds less than 10 knots. Mainly clear. .FRIDAY...Northwest winds less than 10 knots. Sunny. .FRIDAY NIGHT...Light and variable winds. Partly cloudy in the evening, then becoming mostly cloudy. .SATURDAY...South winds 10 knots or less. A chance of rain showers in the afternoon. .SATURDAY NIGHT...Southeast winds 5 to 15 knots becoming south. A chance of showers. .SUNDAY...South winds 10 to 15 knots increasing to 15 to 20 knots. A chance of showers during the day, then showers Sunday night. .MONDAY...Southwest winds 5 to 15 knots. Showers. .TUESDAY...South winds 5 to 10 knots. Showers likely. $$