


Great Lakes Forecast
Issued by NWS
Issued by NWS
188 FZUS61 KBUF 240202 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1002 PM EDT Tue Sep 23 2025 SLZ022-024-240900- Saint Lawrence River from Cape Vincent to Saint Regis 1002 PM EDT Tue Sep 23 2025 .OVERNIGHT...Light and variable winds. Patchy fog. .WEDNESDAY...Northeast winds 10 knots or less. Patchy fog in the morning. A chance of showers late. .WEDNESDAY NIGHT...Northeast winds less than 10 knots becoming east. A chance of showers in the evening, then showers likely overnight. .THURSDAY...East winds 10 knots or less becoming southeast. Showers. .THURSDAY NIGHT...South winds less than 10 knots becoming southwest. Showers in the evening, then showers likely overnight. .FRIDAY...West winds less than 10 knots becoming southwest. A chance of showers. .SATURDAY...South winds 10 knots or less becoming southwest. A chance of showers Saturday night. .SUNDAY...West winds 10 knots or less becoming southwest. A chance of showers during the day. $$