Great Lakes Forecast
Issued by NWS
Issued by NWS
940 FZUS61 KBUF 240203 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1003 PM EDT Fri Oct 23 2026 SLZ022-024-240900- Saint Lawrence River from Cape Vincent to Saint Regis 1003 PM EDT Fri Oct 23 2026 .OVERNIGHT...Northeast winds less than 10 knots. Mostly cloudy, then becoming partly cloudy. .SATURDAY...Light and variable winds. Sunny. .SATURDAY NIGHT...Light and variable winds. Mainly clear. .SUNDAY...South winds 10 knots or less becoming southwest. Sunny. .SUNDAY NIGHT...Southwest winds 5 to 10 knots. Partly to mostly cloudy. .MONDAY...Southwest winds 10 knots or less becoming north. Partly to mostly cloudy. .TUESDAY...North winds 5 to 10 knots becoming light and variable. Mainly clear, then becoming partly cloudy. .WEDNESDAY...Light and variable winds becoming south 5 to 10 knots. Partly to mostly cloudy. $$