


Great Lakes Forecast
Issued by NWS
Issued by NWS
632 FZUS61 KBUF 151402 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1002 AM EDT Mon Sep 15 2025 SLZ022-024-152100- Saint Lawrence River from Cape Vincent to Saint Regis 1002 AM EDT Mon Sep 15 2025 .THIS AFTERNOON...Northeast winds less than 10 knots. Sunny. .TONIGHT...Light and variable winds. Patchy fog after midnight. .TUESDAY...Northeast winds less than 10 knots. Sunny. .TUESDAY NIGHT...Light and variable winds. Mainly clear. .WEDNESDAY...South winds less than 10 knots. Partly cloudy. .THURSDAY...Southwest winds 10 knots or less becoming north. A chance of showers Thursday night. .FRIDAY...North winds 5 to 10 knots. Mainly clear. $$