Great Lakes Forecast
Issued by NWS
Issued by NWS
194 FZUS61 KBUF 081403 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1003 AM EDT Sat Aug 8 2026 SLZ022-024-082100- Saint Lawrence River from Cape Vincent to Saint Regis 1003 AM EDT Sat Aug 8 2026 .THIS AFTERNOON...Southwest winds 10 knots or less. Partly sunny, then becoming mostly sunny. .TONIGHT...Southwest winds 5 to 10 knots. A chance of showers and thunderstorms late in the evening. A chance of showers after midnight. .SUNDAY...West winds 5 to 10 knots becoming southwest. Mostly sunny. .SUNDAY NIGHT...Southwest winds 10 knots or less becoming south. Mainly clear in the evening, then becoming mostly cloudy. .MONDAY...South winds 10 knots or less becoming southwest. Showers likely with a chance of thunderstorms. .TUESDAY...West winds less than 10 knots. Partly cloudy. .WEDNESDAY...Light and variable winds. A chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$