Great Lakes Forecast
Issued by NWS
Issued by NWS
545 FZUS61 KBUF 032103 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 403 PM EST Tue Nov 3 2026 SLZ022-024-040400- Saint Lawrence River from Cape Vincent to Saint Regis 403 PM EST Tue Nov 3 2026 .TONIGHT...South winds 5 to 10 knots becoming southwest. Partly to mostly cloudy. .WEDNESDAY...Southwest winds 10 knots or less. Mostly sunny. .WEDNESDAY NIGHT...South winds 5 to 15 knots. Showers likely overnight. .THURSDAY...South winds 5 to 15 knots becoming southwest. Showers. .THURSDAY NIGHT...Southwest winds 10 knots or less. Partly to mostly cloudy. .FRIDAY...West winds 10 knots or less becoming north. A chance of showers Friday night. .SATURDAY...North winds 10 knots or less becoming west. A chance of rain showers. .SUNDAY...Southwest winds 10 knots or less becoming west. A chance of rain showers Sunday night. $$