Great Lakes Forecast
Issued by NWS
Issued by NWS
374 FZUS61 KBUF 311502 GLFSL Forecast for the Saint Lawrence River including the Thousand Islands Region National Weather Service Buffalo NY 1002 AM EST Wed Dec 31 2025 SLZ022-024-312200- Saint Lawrence River from Cape Vincent to Saint Regis 1002 AM EST Wed Dec 31 2025 .THIS AFTERNOON...West winds 5 to 15 knots becoming southwest. Snow showers likely late. .TONIGHT...West winds 10 knots or less becoming northwest. Lake effect snow showers likely in the evening, then a chance of snow showers after midnight. .THURSDAY...West winds 5 to 10 knots. Mostly sunny. .THURSDAY NIGHT...Southwest winds less than 10 knots. Partly cloudy in the evening, then becoming mostly cloudy. .FRIDAY...Southwest winds 10 knots or less becoming west. A chance of snow showers. .SATURDAY...Northwest winds 5 to 10 knots becoming light and variable. A chance of snow showers Saturday night. .SUNDAY...Southwest winds less than 10 knots. A chance of snow showers during the day. $$