FZUS61 KBUF 192003
GLFSL 

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
403 PM EDT Tue May 19 2026

SLZ022-024-200300-
Saint Lawrence River from Cape Vincent to Saint Regis
403 PM EDT Tue May 19 2026

.TONIGHT...Southwest winds 10 to 15 knots. A chance of showers
and thunderstorms late this evening. A chance of showers after
midnight. 
.WEDNESDAY...Southwest winds 5 to 15 knots becoming west. Mostly
cloudy early, then becoming mostly sunny. 
.WEDNESDAY NIGHT...Northwest winds 5 to 15 knots becoming north.
Partly cloudy. 
.THURSDAY...North winds 10 knots or less becoming northwest.
Sunny.
.THURSDAY NIGHT...Northwest winds less than 10 knots. Mainly
clear. 
.FRIDAY...Light and variable winds. A chance of showers Friday
night. 
.SATURDAY...East winds 5 to 10 knots becoming southeast. A chance
of showers. 
.SUNDAY...Southeast winds 10 knots or less becoming south. A
chance of showers during the day, then showers likely Sunday
night. 

Winds and waves higher in and near thunderstorms.

$$