FZUS61 KBUF 081403 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1003 AM EDT Wed Jul 8 2026 SLZ022-024-082100- Saint Lawrence River from Cape Vincent to Saint Regis 1003 AM EDT Wed Jul 8 2026 .THIS AFTERNOON...Southwest winds 5 to 10 knots. Sunny. .TONIGHT...Southwest winds 10 knots or less. Mainly clear through the early overnight, then becoming partly cloudy. .THURSDAY...Southwest winds 10 knots or less becoming west. A chance of showers in the morning, then showers and scattered thunderstorms in the afternoon. .THURSDAY NIGHT...West winds less than 10 knots. Showers and scattered thunderstorms in the evening, then showers overnight. .FRIDAY...Northwest winds less than 10 knots becoming north. A chance of showers during the day. .SATURDAY...North winds less than 10 knots. Mainly clear. .SUNDAY...Light and variable winds. Mainly clear, then becoming partly cloudy. Winds and waves higher in and near thunderstorms. $$