Great Lakes Forecast
Issued by NWS
Issued by NWS
801 FZUS61 KBUF 140203 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1002 PM EDT Thu Aug 13 2026 SLZ022-024-140900- Saint Lawrence River from Cape Vincent to Saint Regis 1003 PM EDT Thu Aug 13 2026 .OVERNIGHT...Light and variable winds. Areas of fog. .FRIDAY...Light and variable winds becoming north 5 to 10 knots. Patchy fog early. .FRIDAY NIGHT...North winds less than 10 knots. Mainly clear. .SATURDAY...North winds less than 10 knots. Sunny. .SATURDAY NIGHT...Light and variable winds. Mainly clear in the evening, then becoming partly cloudy. .SUNDAY...Southeast winds 10 knots or less becoming north. Showers likely. .MONDAY...North winds less than 10 knots. Partly cloudy, then becoming mainly clear. .TUESDAY...Light and variable winds. Mainly clear, then becoming partly cloudy. $$