Great Lakes Forecast
Issued by NWS
Issued by NWS
701 FZUS61 KBUF 032004 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 404 PM EDT Wed Jun 3 2026 SLZ022-024-040300- Saint Lawrence River from Cape Vincent to Saint Regis 404 PM EDT Wed Jun 3 2026 .TONIGHT...Southwest winds 10 knots or less. Mainly clear. .THURSDAY...Southwest winds 5 to 10 knots. 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. Partly sunny. .FRIDAY NIGHT...Southwest winds 5 to 10 knots. Showers likely overnight. .SATURDAY...Southwest winds 10 knots or less becoming north. Showers with a chance of thunderstorms. .SUNDAY...Northeast winds 10 knots or less. A chance of showers during the day. .MONDAY...Northeast winds less than 10 knots. Mainly clear. Winds and waves higher in and near thunderstorms. $$