


Great Lakes Forecast
Issued by NWS
Issued by NWS
459 FZUS61 KBUF 012002 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 402 PM EDT Wed Oct 1 2025 SLZ022-024-020300- Saint Lawrence River from Cape Vincent to Saint Regis 402 PM EDT Wed Oct 1 2025 .TONIGHT...Northeast winds 10 knots or less. Mainly clear. .THURSDAY...Northeast winds less than 10 knots. Mostly sunny. .THURSDAY NIGHT...Light and variable winds becoming south 5 to 10 knots. Partly cloudy. .FRIDAY...South winds 5 to 10 knots becoming southwest. Sunny. .FRIDAY NIGHT...Southwest winds 10 knots or less. Mainly clear in the evening, then becoming partly cloudy. .SATURDAY...Southwest winds less than 10 knots becoming south. Becoming mainly clear. .SUNDAY...South winds 10 knots or less. Mainly clear. .MONDAY...Southwest winds 5 to 10 knots. A chance of showers Monday night. $$