Great Lakes Forecast
Issued by NWS
Issued by NWS
860 FZUS61 KBUF 030203 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1003 PM EDT Wed Sep 2 2026 SLZ022-024-030900- Saint Lawrence River from Cape Vincent to Saint Regis 1003 PM EDT Wed Sep 2 2026 .REST OF TONIGHT...Southwest winds 5 to 10 knots. Thunderstorms likely with a chance of showers late this evening, then showers with a chance of thunderstorms after midnight. A chance of showers late. Some thunderstorms may produce strong winds late this evening. .THURSDAY...West winds 10 knots or less. Partly to mostly sunny. .THURSDAY NIGHT...West winds less than 10 knots. Mainly clear in the evening, then becoming partly cloudy. .FRIDAY...Light and variable winds becoming northwest 5 to 10 knots. Mostly sunny. .FRIDAY NIGHT...Northwest winds less than 10 knots. Partly cloudy. .SATURDAY...North winds 10 knots or less becoming northeast. Becoming mainly clear. .SUNDAY...Northeast winds less than 10 knots. Mainly clear. .MONDAY...Light and variable winds. A chance of showers Monday night. Winds and waves higher in and near thunderstorms. $$