FZUS61 KBUF 030203 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1002 PM EDT Wed Jul 2 2025 SLZ022-024-030900- Saint Lawrence River from Cape Vincent to Saint Regis 1002 PM EDT Wed Jul 2 2025 .REST OF TONIGHT...Southwest winds 10 knots or less. Mainly clear late this evening, then becoming mostly cloudy. .THURSDAY...Southwest winds 10 knots or less becoming west. A chance of showers and thunderstorms in the morning, then showers likely with a chance of thunderstorms early in the afternoon. A chance of showers and thunderstorms late. .THURSDAY NIGHT...Northwest winds less than 10 knots. A chance of showers and thunderstorms in the evening. .FRIDAY...Northwest winds less than 10 knots. Sunny. .FRIDAY NIGHT...West winds less than 10 knots. Mainly clear in the evening, then becoming partly cloudy. .SATURDAY...Southwest winds 10 knots or less. Partly cloudy. .SUNDAY...Southwest winds 5 to 10 knots. A chance of showers Sunday night. .MONDAY...Southwest winds 10 knots or less becoming north. A chance of showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$