


Great Lakes Forecast
Issued by NWS
Issued by NWS
008 FZUS61 KBUF 310202 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1002 PM EDT Wed Jul 30 2025 SLZ022-024-310900- Saint Lawrence River from Cape Vincent to Saint Regis 1002 PM EDT Wed Jul 30 2025 .OVERNIGHT...North winds 5 to 10 knots becoming northeast. Mostly cloudy. .THURSDAY...Northeast winds 5 to 10 knots. Mostly cloudy. .THURSDAY NIGHT...Northeast winds 5 to 10 knots. Becoming mainly clear. .FRIDAY...Northeast winds 5 to 10 knots becoming north. Sunny. .FRIDAY NIGHT...North winds 5 to 10 knots becoming light and variable. Mainly clear. .SATURDAY...West winds 10 knots or less becoming southwest. Mainly clear. .SUNDAY...Southwest winds 10 knots or less. Mainly clear. .MONDAY...Southwest winds less than 10 knots. Mainly clear, then becoming partly cloudy. $$