Great Lakes Forecast
Issued by NWS
Issued by NWS
268 FZUS61 KBUF 232003 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 403 PM EDT Wed Sep 23 2026 SLZ022-024-240300- Saint Lawrence River from Cape Vincent to Saint Regis 403 PM EDT Wed Sep 23 2026 .TONIGHT...Northeast winds 10 knots or less. Clear. .THURSDAY...Northeast winds 10 knots or less. Sunny. .THURSDAY NIGHT...Northeast winds 10 knots or less. Mainly clear. .FRIDAY...North winds 10 knots or less becoming northeast. Sunny. .FRIDAY NIGHT...Northeast winds 10 knots or less becoming north. Partly cloudy. .SATURDAY...North winds 5 to 10 knots. Partly to mostly cloudy. .SUNDAY...Northeast winds 10 knots or less. Partly to mostly cloudy. .MONDAY...Northeast winds less than 10 knots. Partly cloudy. $$