


Great Lakes Forecast
Issued by NWS
Issued by NWS
479 FZUS61 KBUF 250802 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 402 AM EDT Thu Sep 25 2025 SLZ022-024-251500- Saint Lawrence River from Cape Vincent to Saint Regis 402 AM EDT Thu Sep 25 2025 .TODAY...Northeast winds 10 knots or less becoming southeast. Showers. .TONIGHT...Southwest winds less than 10 knots becoming west. Showers likely early, then a chance of showers from late evening on. Patchy fog. .FRIDAY...West winds 10 knots or less. A chance of showers. .FRIDAY NIGHT...Northwest winds less than 10 knots. A chance of showers in the evening. .SATURDAY...Northeast winds less than 10 knots. Partly cloudy. .SUNDAY...Southwest winds less than 10 knots. Mainly clear. .MONDAY...West winds less than 10 knots becoming northeast. Mainly clear. $$