


Great Lakes Forecast
Issued by NWS
Issued by NWS
591 FZUS61 KBUF 022002 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 402 PM EDT Sat Aug 2 2025 SLZ022-024-030300- Saint Lawrence River from Cape Vincent to Saint Regis 402 PM EDT Sat Aug 2 2025 .TONIGHT...Southwest winds 10 knots or less. Mainly clear. .SUNDAY...Southwest winds 5 to 15 knots. Sunny. .SUNDAY NIGHT...Southwest winds 10 knots or less. Mainly clear. .MONDAY...Light and variable winds. Sunny. .MONDAY NIGHT...North winds less than 10 knots becoming northeast. Mainly clear in the evening, then becoming partly cloudy. .TUESDAY...Northeast winds less than 10 knots. Partly cloudy. .WEDNESDAY...Northeast winds less than 10 knots becoming east. Mainly clear, then becoming partly cloudy. .THURSDAY...Southeast winds less than 10 knots becoming south. Partly cloudy. $$