![National Oceanic and Atmospheric Administration](/build/images/header/noaa.d87e0251.png)
![National Weather Service](/build/images/header/nws.4e6585d8.png)
![United States Department of Commerce](/build/images/header/doc.b38ba91a.png)
Great Lakes Forecast
Issued by NWS
Issued by NWS
918 FZUS61 KBUF 180749 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 349 AM EDT Sun Aug 18 2024 SLZ022-024-181530- Saint Lawrence River from Cape Vincent to Saint Regis 349 AM EDT Sun Aug 18 2024 .TODAY...South winds 5 to 15 knots. A chance of showers and thunderstorms early, then showers and thunderstorms late. Some thunderstorms may produce gusty winds late. .TONIGHT...South winds 10 knots or less becoming southwest. Showers and thunderstorms early, then showers with a chance of thunderstorms from late evening on. Some thunderstorms may produce gusty winds early. .MONDAY...Northwest winds 5 to 15 knots becoming north. Showers with a chance of thunderstorms. .MONDAY NIGHT...North winds 5 to 15 knots. A chance of showers in the evening. .TUESDAY...Northwest winds 10 knots or less. Mostly cloudy. .WEDNESDAY...Northwest winds 5 to 10 knots becoming light and variable. Mostly cloudy. .THURSDAY...Light and variable winds. Becoming mainly clear. Winds and waves higher in and near thunderstorms. $$ Hitchcock/JJR