Great Lakes Forecast
Issued by NWS
Issued by NWS
143 FZUS61 KBUF 020303 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1003 PM EST Sun Nov 1 2026 SLZ022-024-021000- Saint Lawrence River from Cape Vincent to Saint Regis 1003 PM EST Sun Nov 1 2026 .OVERNIGHT...South winds 5 to 10 knots becoming southwest. Mostly cloudy. .MONDAY...Southwest winds 5 to 10 knots. Mostly sunny. .MONDAY NIGHT...Southwest winds 10 knots or less becoming south. Mostly cloudy. .TUESDAY...South winds 10 knots or less. A chance of showers in the morning, then showers likely in the afternoon. .TUESDAY NIGHT...South winds 10 knots or less. Showers likely in the evening. .WEDNESDAY...South winds 5 to 15 knots. A chance of showers Wednesday night. .THURSDAY...South winds 10 knots or less becoming southwest. Showers likely. .FRIDAY...West winds 5 to 10 knots becoming north. Showers likely during the day, then a chance of showers Friday night. $$