


Great Lakes Forecast
Issued by NWS
Issued by NWS
770 FZUS61 KBUF 240802 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 402 AM EDT Tue Jun 24 2025 SLZ022-024-241500- Saint Lawrence River from Cape Vincent to Saint Regis 402 AM EDT Tue Jun 24 2025 .TODAY...Southwest winds 5 to 10 knots. A chance of showers and thunderstorms this afternoon. .TONIGHT...West winds 5 to 10 knots becoming light and variable. A chance of showers and thunderstorms early, then a chance of showers late in the evening. .WEDNESDAY...North winds less than 10 knots. Mostly sunny. .WEDNESDAY NIGHT...North winds less than 10 knots becoming northeast. Partly cloudy in the evening, then becoming mostly cloudy. .THURSDAY...Northeast winds 10 knots or less becoming east. A chance of showers Thursday night. .FRIDAY...East winds 5 to 10 knots becoming south. Showers likely with a chance of thunderstorms. .SATURDAY...South winds 10 knots or less becoming southwest. Showers likely with a chance of thunderstorms during the day, then a chance of showers Saturday night. Winds and waves higher in and near thunderstorms. $$