Great Lakes Forecast
Issued by NWS
Issued by NWS
399 FZUS61 KBUF 031405 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1005 AM EDT Wed Jun 3 2026 SLZ022-024-032100- Saint Lawrence River from Cape Vincent to Saint Regis 1005 AM EDT Wed Jun 3 2026 .THIS AFTERNOON...West winds 10 knots or less. Sunny. .TONIGHT...Southwest winds 10 knots or less. Mainly clear in the evening, then becoming partly cloudy. .THURSDAY...Southwest winds 10 knots or less. Mostly sunny. .THURSDAY NIGHT...Southwest winds 10 knots or less. Partly cloudy in the evening, then becoming mostly cloudy. .FRIDAY...Southwest winds 5 to 10 knots. Showers likely Friday night. .SATURDAY...Southwest winds 10 knots or less becoming south. Showers with a chance of thunderstorms. .SUNDAY...Northeast winds 10 knots or less. A chance of showers. Winds and waves higher in and near thunderstorms. $$