Great Lakes Forecast
Issued by NWS
Issued by NWS
384 FZUS61 KBUF 151502 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1002 AM EST Sat Nov 15 2025 SLZ022-152200- Saint Lawrence River from Cape Vincent to Ogdensburg- 1002 AM EST Sat Nov 15 2025 .THIS AFTERNOON...East winds less than 10 knots. Rain showers late. .TONIGHT...East winds 5 to 15 knots becoming west. Rain showers. .SUNDAY...West winds 15 to 20 knots. Rain and snow showers in the morning, then snow showers in the afternoon. .SUNDAY NIGHT...West winds 15 to 20 knots becoming northwest 10 to 15 knots. Snow showers likely. .MONDAY...West winds 5 to 15 knots. Mostly cloudy. .TUESDAY...West winds 5 to 10 knots becoming light and variable. Mostly cloudy. .WEDNESDAY...Northwest winds less than 10 knots. Mostly cloudy. $$ SLZ024-152200- Saint Lawrence River from Ogdensburg to Saint Regis- 1002 AM EST Sat Nov 15 2025 .THIS AFTERNOON...Light and variable winds. Rain showers likely late. .TONIGHT...East winds 10 knots or less becoming west. Rain showers. .SUNDAY...West winds 15 to 20 knots. Snow and rain showers in the morning, then snow showers in the afternoon. .SUNDAY NIGHT...West winds 15 to 20 knots. Snow showers likely. .MONDAY...West winds 15 to 20 knots diminishing to 10 to 15 knots. A chance of snow showers during the day. .TUESDAY...West winds 5 to 10 knots becoming light and variable. Mostly cloudy. .WEDNESDAY...West winds less than 10 knots. Mostly cloudy. $$