FZUS61 KBUF 210803

GLFSL 



Forecast for the Saint Lawrence River

including the Thousand Islands Region

National Weather Service Buffalo NY

402 AM EDT Sun Jun 21 2026



SLZ022-024-211500-

Saint Lawrence River from Cape Vincent to Saint Regis

402 AM EDT Sun Jun 21 2026



.TODAY...West winds 10 knots or less. A chance of showers this

morning, then a chance of showers and thunderstorms this

afternoon. 

.TONIGHT...Southwest winds less than 10 knots. A chance of

showers and thunderstorms early. 

.MONDAY...Light and variable winds. A chance of showers. 

.MONDAY NIGHT...Southeast winds less than 10 knots. A chance of

showers in the evening. 

.TUESDAY...Northwest winds less than 10 knots. Partly cloudy. 

.WEDNESDAY...West winds less than 10 knots. Partly to mostly

cloudy. 

.THURSDAY...South winds less than 10 knots. A chance of showers

during the day, then showers likely Thursday night. 



Winds and waves higher in and near thunderstorms.



$$