


Great Lakes Forecast
Issued by NWS
Issued by NWS
056 FZUS61 KBUF 132002 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 402 PM EDT Mon Oct 13 2025 SLZ022-024-140300- Saint Lawrence River from Cape Vincent to Saint Regis 402 PM EDT Mon Oct 13 2025 .TONIGHT...Northeast winds 10 knots or less. A chance of showers late this evening. .TUESDAY...Light and variable winds. Mostly cloudy early, then becoming mostly sunny. .TUESDAY NIGHT...Southwest winds 10 knots or less becoming northwest. Partly to mostly cloudy. .WEDNESDAY...North winds 5 to 10 knots. Mostly sunny. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Mainly clear. .THURSDAY...North winds 5 to 10 knots becoming light and variable. Mainly clear. .FRIDAY...Light and variable winds. A chance of rain showers Friday night. .SATURDAY...South winds 5 to 10 knots. A chance of showers. $$