


Great Lakes Forecast
Issued by NWS
Issued by NWS
860 FZUS61 KBUF 072001 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 401 PM EDT Sat Jun 7 2025 SLZ022-024-080300- Saint Lawrence River from Cape Vincent to Saint Regis 401 PM EDT Sat Jun 7 2025 .TONIGHT...North winds 10 knots or less becoming northeast. Mainly clear. .SUNDAY...Northeast winds 10 knots or less. Sunny through early afternoon, then becoming partly sunny. .SUNDAY NIGHT...Northeast winds 10 knots or less becoming southeast. A chance of showers overnight. .MONDAY...Southeast winds 5 to 10 knots becoming south. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. .MONDAY NIGHT...South winds 5 to 10 knots. Showers with a chance of thunderstorms in the evening, then showers overnight. .TUESDAY...South winds 5 to 10 knots becoming southwest. Showers with a chance of thunderstorms. .WEDNESDAY...Southwest winds 5 to 15 knots. A chance of showers. .THURSDAY...West winds 10 knots or less. Partly cloudy. Winds and waves higher in and near thunderstorms. $$