Great Lakes Forecast
Issued by NWS
Issued by NWS
731 FZUS61 KBUF 242003 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 403 PM EDT Sat Oct 24 2026 SLZ022-024-250300- Saint Lawrence River from Cape Vincent to Saint Regis 403 PM EDT Sat Oct 24 2026 .TONIGHT...Light and variable winds. Clear. .SUNDAY...Light and variable winds becoming southwest around 10 knots. Sunny. .SUNDAY NIGHT...Southwest winds 5 to 10 knots. A chance of showers overnight. .MONDAY...Southwest winds 10 knots or less becoming northwest. A chance of showers. .MONDAY NIGHT...Northwest winds 5 to 10 knots becoming north. Becoming mainly clear. .TUESDAY...North winds 5 to 10 knots becoming light and variable. Mainly clear. .WEDNESDAY...Light and variable winds becoming south 5 to 10 knots. Partly cloudy. .THURSDAY...South winds 5 to 15 knots becoming southwest. A chance of rain showers. $$