FZUS61 KBUF 062001 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 401 PM EDT Sat Jul 6 2024 SLZ022-024-070300- Saint Lawrence River from Cape Vincent to Saint Regis 401 PM EDT Sat Jul 6 2024 .TONIGHT...Southwest winds 10 knots or less. A chance of showers and thunderstorms early, then a chance of showers late this evening. .SUNDAY...Southwest winds 10 knots or less. Partly to mostly sunny. .SUNDAY NIGHT...Southwest winds 5 to 10 knots becoming light and variable. Mainly clear. .MONDAY...Light and variable winds becoming southwest 5 to 10 knots. Mostly sunny. .MONDAY NIGHT...Southwest winds less than 10 knots. Partly to mostly cloudy. .TUESDAY...Southwest winds 10 knots or less. A chance of showers during the day, then showers likely with a chance of thunderstorms Tuesday night. .WEDNESDAY...West winds 10 knots or less becoming northwest. Showers likely with a chance of thunderstorms. .THURSDAY...Northeast winds 10 knots or less becoming east. A chance of showers. Winds and waves higher in and near thunderstorms. $$