


Great Lakes Forecast
Issued by NWS
Issued by NWS
330 FZUS61 KBUF 162002 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 402 PM EDT Mon Jun 16 2025 SLZ022-024-170300- Saint Lawrence River from Cape Vincent to Saint Regis 402 PM EDT Mon Jun 16 2025 .TONIGHT...Southwest winds 10 knots or less becoming south. Partly cloudy. .TUESDAY...South winds 5 to 10 knots. A chance of showers in the afternoon. .TUESDAY NIGHT...South winds 5 to 10 knots becoming southwest. A chance of showers overnight. .WEDNESDAY...Southwest winds 5 to 10 knots. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...Southwest winds 10 knots or less becoming south. A chance of showers and thunderstorms in the evening, then showers likely overnight. .THURSDAY...Southwest winds 5 to 15 knots becoming west. Showers with a chance of thunderstorms. .FRIDAY...West winds 5 to 10 knots becoming light and variable. A chance of showers. .SATURDAY...Southwest winds 10 knots or less becoming south. A chance of showers. Winds and waves higher in and near thunderstorms. $$