Great Lakes Forecast
Issued by NWS
Issued by NWS
197 FZUS61 KBUF 040203 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1003 PM EDT Thu Sep 3 2026 SLZ022-024-040900- Saint Lawrence River from Cape Vincent to Saint Regis 1003 PM EDT Thu Sep 3 2026 .OVERNIGHT...West winds less than 10 knots. Patchy fog after midnight. .FRIDAY...Light and variable winds becoming northwest 5 to 10 knots. Patchy fog early. .FRIDAY NIGHT...Northwest winds less than 10 knots. Partly cloudy. .SATURDAY...North winds 10 knots or less becoming northeast. A chance of showers in the afternoon. .SATURDAY NIGHT...Northeast winds 5 to 10 knots. A chance of showers in the evening. .SUNDAY...Northeast winds 5 to 10 knots becoming light and variable. Mainly clear. .MONDAY...Light and variable winds. Mainly clear, then becoming partly cloudy. .TUESDAY...North winds less than 10 knots becoming southeast. A chance of showers Tuesday night. $$