Great Lakes Forecast
Issued by NWS
Issued by NWS
997 FZUS61 KBUF 282003 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 403 PM EDT Tue Jul 28 2026 SLZ022-024-290300- Saint Lawrence River from Cape Vincent to Saint Regis 403 PM EDT Tue Jul 28 2026 .TONIGHT...Light and variable winds. Showers with a chance of thunderstorms this evening, then showers likely after midnight. .WEDNESDAY...North winds 10 knots or less becoming northeast. A chance of showers early, then showers with a chance of thunderstorms from late morning on. .WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Showers likely with a chance of thunderstorms in the evening, then a chance of showers overnight. .THURSDAY...Northeast winds 5 to 10 knots. A chance of showers. .THURSDAY NIGHT...North winds less than 10 knots. A chance of showers in the evening. .FRIDAY...Light and variable winds. Mainly clear, then becoming partly cloudy. .SATURDAY...Southwest winds less than 10 knots. A chance of showers Saturday night. .SUNDAY...Southwest winds less than 10 knots. Showers likely with a chance of thunderstorms. Winds and waves higher in and near thunderstorms. $$