


Great Lakes Forecast
Issued by NWS
Issued by NWS
408 FZUS61 KBUF 281402 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1002 AM EDT Thu Aug 28 2025 SLZ022-024-282100- Saint Lawrence River from Cape Vincent to Saint Regis 1002 AM EDT Thu Aug 28 2025 .THIS AFTERNOON...Southwest winds 15 to 20 knots. A chance of showers early. Showers likely with a chance of thunderstorms late. .TONIGHT...Southwest winds 5 to 15 knots becoming northwest. Showers with a chance of thunderstorms early, then showers late in the evening. Showers likely with a chance of thunderstorms after midnight. .FRIDAY...Northwest winds 10 knots or less becoming west. A chance of showers. .FRIDAY NIGHT...West winds less than 10 knots. A chance of showers in the evening. .SATURDAY...West winds less than 10 knots. A chance of showers. .SUNDAY...Light and variable winds. Mainly clear. .MONDAY...Light and variable winds. Mainly clear. Winds and waves higher in and near thunderstorms. $$