Expires:202507110300;;219102 FZUS61 KBUF 102002 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 402 PM EDT Thu Jul 10 2025 SLZ022-024-110300- Saint Lawrence River from Cape Vincent to Saint Regis 402 PM EDT Thu Jul 10 2025 .TONIGHT...Southwest winds less than 10 knots. A chance of showers and thunderstorms early. Patchy fog after midnight. Some thunderstorms may produce gusty winds early. .FRIDAY...Light and variable winds. Patchy fog early. .FRIDAY NIGHT...Southwest winds less than 10 knots. Patchy fog overnight. .SATURDAY...Light and variable winds. Sunny. .SATURDAY NIGHT...Light and variable winds. Mainly clear. .SUNDAY...South winds 10 knots or less becoming southwest. Showers with a chance of thunderstorms. .MONDAY...Southwest winds 10 knots or less. Showers likely with a chance of thunderstorms during the day. .TUESDAY...Southwest winds 10 knots or less. Mainly clear. Winds and waves higher in and near thunderstorms. $$