Great Lakes Forecast
Issued by NWS
Issued by NWS
687 FZUS61 KBUF 171502 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1002 AM EST Mon Nov 17 2025 SLZ022-172200- Saint Lawrence River from Cape Vincent to Ogdensburg- 1002 AM EST Mon Nov 17 2025 .THIS AFTERNOON...West winds 10 to 15 knots. Cloudy. .TONIGHT...West winds 5 to 15 knots. Mostly cloudy. .TUESDAY...West winds 10 knots or less becoming southwest. Mostly sunny. .TUESDAY NIGHT...Southwest winds less than 10 knots. Partly cloudy. .WEDNESDAY...Light and variable winds. Mainly clear, then becoming mostly cloudy. .THURSDAY...Light and variable winds becoming south 5 to 10 knots. Rain showers likely Thursday night. .FRIDAY...South winds 5 to 10 knots becoming northwest. Rain showers. $$ SLZ024-172200- Saint Lawrence River from Ogdensburg to Saint Regis- 1002 AM EST Mon Nov 17 2025 .THIS AFTERNOON...West winds 10 to 15 knots. Cloudy. .TONIGHT...West winds 10 to 15 knots. Mostly cloudy. .TUESDAY...West winds 5 to 10 knots. Partly sunny. .TUESDAY NIGHT...West winds less than 10 knots. Partly cloudy. .WEDNESDAY...Light and variable winds. Partly to mostly cloudy. .THURSDAY...Light and variable winds. Rain showers likely Thursday night. .FRIDAY...South winds 5 to 10 knots becoming west. Rain showers. $$