


Great Lakes Forecast
Issued by NWS
Issued by NWS
055 FZUS61 KBUF 050202 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1002 PM EDT Sat Oct 4 2025 SLZ022-024-050900- Saint Lawrence River from Cape Vincent to Saint Regis 1002 PM EDT Sat Oct 4 2025 .OVERNIGHT...Southwest winds less than 10 knots. Mainly clear. .SUNDAY...South winds 10 knots or less becoming southwest. Sunny. .SUNDAY NIGHT...Southwest winds 10 knots or less becoming south. Mainly clear in the evening, then becoming partly cloudy. .MONDAY...South winds 5 to 10 knots becoming southwest. Mostly sunny. .MONDAY NIGHT...Southwest winds 5 to 10 knots. A chance of showers overnight. .TUESDAY...Southwest winds 5 to 10 knots becoming northwest. Showers. .WEDNESDAY...Northwest winds 10 knots or less becoming north. Becoming mainly clear. .THURSDAY...Northeast winds 10 knots or less becoming south. Mainly clear. $$