Great Lakes Forecast
Issued by NWS
Issued by NWS
139 FZUS61 KBUF 282003 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 403 PM EDT Mon Sep 28 2026 SLZ022-024-290300- Saint Lawrence River from Cape Vincent to Saint Regis 403 PM EDT Mon Sep 28 2026 .TONIGHT...Northeast winds 10 knots or less becoming north. Cloudy. .TUESDAY...North winds less than 10 knots. Cloudy in the morning, then clearing. .TUESDAY NIGHT...Light and variable winds. Mainly clear in the evening, then becoming partly cloudy. .WEDNESDAY...South winds 10 knots or less becoming southwest. Mostly cloudy in the morning, then becoming partly sunny. .WEDNESDAY NIGHT...Southwest winds 10 knots or less becoming south. Mostly cloudy. .THURSDAY...South winds 5 to 15 knots becoming west. A chance of showers Thursday night. .FRIDAY...Northwest winds less than 10 knots becoming north. A chance of showers during the day. .SATURDAY...North winds less than 10 knots becoming east. A chance of showers Saturday night. $$