Great Lakes Forecast
Issued by NWS
Issued by NWS
654 FZUS61 KBUF 070902 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 402 AM EST Sun Dec 7 2025 SLZ022-071600- Saint Lawrence River from Cape Vincent to Ogdensburg- 402 AM EST Sun Dec 7 2025 .TODAY...Northeast winds 10 knots or less. Snow from late morning on. .TONIGHT...North winds 10 knots or less becoming northwest. Snow likely early, then a chance of snow showers late in the evening. .MONDAY...Northwest winds less than 10 knots becoming southwest. Sunny. .MONDAY NIGHT...Southwest winds 10 knots or less becoming south. Partly to mostly cloudy. .TUESDAY...South winds 10 to 15 knots becoming southwest. Snow showers likely during the day, then snow and rain showers Tuesday night. .WEDNESDAY...South winds 10 to 15 knots becoming northwest 5 to 10 knots. Rain and snow showers. .THURSDAY...West winds 5 to 10 knots becoming northwest. A chance of snow showers. $$ SLZ024-071600- Saint Lawrence River from Ogdensburg to Saint Regis- 402 AM EST Sun Dec 7 2025 .TODAY...Northeast winds less than 10 knots. A chance of snow late this morning. Snow this afternoon. .TONIGHT...Northeast winds 10 knots or less becoming northwest. Snow likely early, then a chance of snow showers late in the evening. .MONDAY...Northwest winds 10 knots or less becoming southwest. Sunny. .MONDAY NIGHT...Southwest winds less than 10 knots becoming south. Partly to mostly cloudy. .TUESDAY...South winds 5 to 15 knots. Snow showers. .WEDNESDAY...South winds 10 to 15 knots becoming west 5 to 10 knots. Snow and rain showers. .THURSDAY...West winds 5 to 10 knots becoming northwest. A chance of snow showers. $$