Great Lakes Forecast
Issued by NWS
Issued by NWS
676 FZUS61 KBUF 142003 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 402 PM EDT Fri Aug 14 2026 SLZ022-024-150300- Saint Lawrence River from Cape Vincent to Saint Regis 402 PM EDT Fri Aug 14 2026 .TONIGHT...North winds less than 10 knots. Areas of fog after midnight. .SATURDAY...Northeast winds less than 10 knots. Areas of fog early. .SATURDAY NIGHT...Light and variable winds. Mainly clear in the evening, then becoming partly cloudy. .SUNDAY...Southeast winds less than 10 knots becoming east. Showers with a chance of thunderstorms in the afternoon. .SUNDAY NIGHT...East winds 10 knots or less becoming north. Showers with a chance of thunderstorms in the evening, then showers likely overnight. .MONDAY...Northwest winds less than 10 knots. Mostly cloudy, then clearing. .TUESDAY...Light and variable winds. Mainly clear, then becoming partly cloudy. .WEDNESDAY...Southwest winds 5 to 10 knots. A chance of showers during the day, then showers likely Wednesday night. Winds and waves higher in and near thunderstorms. $$