Great Lakes Forecast
Issued by NWS
Issued by NWS
415 FZUS61 KBUF 270204 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1004 PM EDT Mon Oct 26 2026 SLZ022-024-270900- Saint Lawrence River from Cape Vincent to Saint Regis 1004 PM EDT Mon Oct 26 2026 .OVERNIGHT...North winds 5 to 10 knots. Mainly clear. .TUESDAY...North winds 5 to 10 knots becoming light and variable. Sunny. .TUESDAY NIGHT...Light and variable winds. Mainly clear in the evening, then becoming partly cloudy. .WEDNESDAY...Light and variable winds. Partly to mostly sunny. .WEDNESDAY NIGHT...Light and variable winds becoming south 5 to 10 knots. Mostly cloudy. .THURSDAY...Southwest winds 5 to 15 knots. Showers likely Thursday night. .FRIDAY...West winds 5 to 10 knots becoming light and variable. A chance of rain showers during the day. .SATURDAY...Light and variable winds. Partly to mostly cloudy. $$