FZUS61 KBUF 231403
GLFSL 

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
1002 AM EDT Sun Aug 23 2026

SLZ022-024-232100-
Saint Lawrence River from Cape Vincent to Saint Regis
1002 AM EDT Sun Aug 23 2026

.THIS AFTERNOON...South winds 10 to 15 knots becoming southwest.
Showers likely with a chance of thunderstorms. 
.TONIGHT...Southwest winds 5 to 15 knots. A chance of showers and
thunderstorms early, then a chance of showers. Showers likely
late. 
.MONDAY...South winds 5 to 15 knots becoming southwest. Showers
in the morning, then showers with a chance of thunderstorms in
the afternoon. 
.MONDAY NIGHT...Southwest winds 5 to 15 knots. Showers with a
chance of thunderstorms in the evening, then showers overnight. 
.TUESDAY...West winds 10 knots or less. A chance of showers. 
.WEDNESDAY...Southwest winds 10 knots or less becoming south.
Partly cloudy. 
.THURSDAY...South winds 5 to 10 knots. A chance of showers and
thunderstorms during the day, then showers likely with a chance
of thunderstorms Thursday night. 

Winds and waves higher in and near thunderstorms.

$$