Great Lakes Forecast
Issued by NWS
Issued by NWS
607 FZUS61 KBUF 142102 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 402 PM EST Fri Nov 14 2025 SLZ022-150400- Saint Lawrence River from Cape Vincent to Ogdensburg- 402 PM EST Fri Nov 14 2025 .TONIGHT...Northwest winds less than 10 knots. Mostly cloudy. .SATURDAY...Light and variable winds becoming southeast 5 to 10 knots. A chance of rain showers early in the afternoon. Rain showers late. .SATURDAY NIGHT...Southeast winds 5 to 15 knots becoming west 15 to 20 knots. Rain showers. .SUNDAY...West winds 15 to 20 knots diminishing to 10 to 15 knots. Rain and snow showers in the morning, then snow showers in the afternoon. .SUNDAY NIGHT...West winds 10 to 15 knots. A chance of snow showers. .MONDAY...West winds 5 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 becoming south. Mostly cloudy. $$ SLZ024-150400- Saint Lawrence River from Ogdensburg to Saint Regis- 402 PM EST Fri Nov 14 2025 .TONIGHT...Northwest winds less than 10 knots. Mostly cloudy. .SATURDAY...Light and variable winds. A chance of rain showers early in the afternoon. Rain showers likely late. .SATURDAY NIGHT...East winds 10 knots or less becoming west 10 to 15 knots. Rain showers in the evening, then rain and snow showers overnight. .SUNDAY...West winds 10 to 15 knots increasing to 15 to 20 knots. Rain and snow showers in the morning, then snow showers in the afternoon. .SUNDAY NIGHT...West winds 15 to 20 knots. Snow showers likely. .MONDAY...West winds 5 to 15 knots. A chance of snow showers during the day. .TUESDAY...West winds 10 knots or less. Mostly cloudy. .WEDNESDAY...West winds less than 10 knots. Mostly cloudy. $$