FZUS61 KBUF 311412
GLFSL

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
1012 AM EDT Tue Mar 31 2026

SLZ022-024-312100-
Saint Lawrence River from Cape Vincent to Saint Regis
1012 AM EDT Tue Mar 31 2026

.THIS AFTERNOON...Northeast winds 5 to 15 knots. A chance of rain
showers, then rain showers likely with a chance of thunderstorms
late.
.TONIGHT...Northeast winds 5 to 10 knots. Rain showers with a
chance of thunderstorms in the evening, then rain showers likely
after midnight. A chance of rain showers late. Some thunderstorms
may produce gusty winds early.
.WEDNESDAY...North winds 5 to 10 knots. Mostly cloudy.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Mostly cloudy.
.THURSDAY...Northeast winds 5 to 15 knots becoming southeast
15 to 20 knots. Rain and snow showers with freezing rain likely
during the day, then rain showers Thursday night.
.FRIDAY...South winds 15 to 20 knots becoming northwest 5 to
15 knots. Rain showers during the day, then a chance of rain
showers Friday night.
.SATURDAY...Northeast winds 5 to 15 knots becoming south. A
chance of rain showers during the day, then rain showers Saturday
night.

Winds and waves higher in and near thunderstorms.

$$