Great Lakes Forecast
Issued by NWS
Issued by NWS
422 FZUS61 KBUF 280927 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 527 AM EDT Thu May 28 2026 SLZ022-024-281515- Saint Lawrence River from Cape Vincent to Saint Regis 527 AM EDT Thu May 28 2026 .TODAY...North winds 5 to 15 knots becoming northwest. A chance of showers early. .TONIGHT...Northwest winds 10 knots or less becoming west. Partly cloudy through the early overnight, then becoming mostly cloudy. .FRIDAY...West winds 10 knots or less increasing to 15 to 20 knots. Showers in the afternoon. .FRIDAY NIGHT...Northwest winds 15 to 20 knots becoming north. Showers in the evening, then showers likely overnight. .SATURDAY...Northeast winds 15 to 20 knots becoming southwest and diminishing to 10 knots or less. A chance of showers during the day. .SUNDAY...Southwest winds less than 10 knots. A chance of showers. .MONDAY...North winds less than 10 knots. A chance of showers. $$