Great Lakes Forecast
Issued by NWS
Issued by NWS
338 FZUS61 KBUF 051503 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1003 AM EST Thu Nov 5 2026 SLZ022-024-052200- Saint Lawrence River from Cape Vincent to Saint Regis 1003 AM EST Thu Nov 5 2026 .THIS AFTERNOON...Southwest winds 10 to 15 knots. A chance of showers. .TONIGHT...Southwest winds 10 knots or less. Mostly cloudy. .FRIDAY...Light and variable winds. A chance of showers. .FRIDAY NIGHT...Light and variable winds becoming northeast 5 to 10 knots. A chance of showers in the evening, then showers likely overnight. .SATURDAY...Northeast winds 5 to 10 knots becoming northwest. Rain showers likely. .SUNDAY...West winds 5 to 10 knots. A chance of rain showers. .MONDAY...West winds 5 to 10 knots becoming southwest. A chance of rain showers during the day. $$