


Great Lakes Forecast
Issued by NWS
Issued by NWS
924 FZUS61 KBUF 161402 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1002 AM EDT Wed Jul 16 2025 SLZ022-024-162100- Saint Lawrence River from Cape Vincent to Saint Regis 1002 AM EDT Wed Jul 16 2025 .THIS AFTERNOON...Southwest winds 5 to 10 knots. Sunny. .TONIGHT...Southwest winds 10 knots or less becoming south. A chance of showers and thunderstorms late in the evening. Showers likely with a chance of thunderstorms after midnight, then a chance of showers and thunderstorms late. .THURSDAY...South winds 10 knots or less becoming southwest and increasing to 15 to 20 knots. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. .THURSDAY NIGHT...Southwest winds 5 to 15 knots becoming northwest. A chance of showers and thunderstorms in the evening, then a chance of showers overnight. .FRIDAY...North winds 5 to 10 knots becoming light and variable. Mainly clear. .SATURDAY...Southwest winds less than 10 knots. A chance of showers Saturday night. .SUNDAY...West winds less than 10 knots becoming north. A chance of showers during the day. Winds and waves higher in and near thunderstorms. $$