Great Lakes Forecast
Issued by NWS
Issued by NWS
460 FZUS61 KBUF 291403 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1003 AM EDT Fri May 29 2026 SLZ022-024-292100- Saint Lawrence River from Cape Vincent to Saint Regis 1003 AM EDT Fri May 29 2026 .THIS AFTERNOON...Southwest winds 10 to 15 knots becoming west. Showers likely. .TONIGHT...Northwest winds 15 to 20 knots becoming north. Showers early, then showers likely late in the evening. A chance of showers after midnight. .SATURDAY...North winds 5 to 15 knots becoming northeast. Mostly sunny. .SATURDAY NIGHT...East winds less than 10 knots. Mainly clear in the evening, then becoming partly cloudy. .SUNDAY...Southwest winds 5 to 10 knots becoming light and variable. A chance of showers. .MONDAY...North winds less than 10 knots. A chance of showers. .TUESDAY...North winds 10 knots or less becoming northeast. Partly cloudy. $$