Great Lakes Forecast
Issued by NWS
Issued by NWS
998 FZUS61 KBUF 241403 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1003 AM EDT Fri Jul 24 2026 SLZ022-024-242100- Saint Lawrence River from Cape Vincent to Saint Regis 1003 AM EDT Fri Jul 24 2026 .THIS AFTERNOON...Southwest winds 5 to 10 knots. Sunny. .TONIGHT...Southwest winds 5 to 10 knots becoming light and variable. Mainly clear. .SATURDAY...South winds 10 knots or less becoming southwest. Sunny. .SATURDAY NIGHT...Southwest winds less than 10 knots. Partly to mostly cloudy. .SUNDAY...South winds less than 10 knots. A chance of showers. .MONDAY...South winds 10 knots or less. Showers likely with a chance of thunderstorms. .TUESDAY...South winds 10 knots or less becoming northwest. Showers likely with a chance of thunderstorms. Winds and waves higher in and near thunderstorms. $$