310
FZUS61 KBUF 181402
GLFSL

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
1002 AM EDT Tue Aug 18 2026

SLZ022-024-182100-
Saint Lawrence River from Cape Vincent to Saint Regis
1002 AM EDT Tue Aug 18 2026

.THIS AFTERNOON...Light and variable winds becoming west 5 to
10 knots. Partly sunny.
.TONIGHT...Southwest winds 10 knots or less. Partly to mostly
cloudy.
.WEDNESDAY...Southwest winds 5 to 10 knots. Showers in the
morning, then showers with a chance of thunderstorms in the
afternoon.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots becoming light
and variable. A chance of showers in the evening. Patchy fog.
.THURSDAY...Light and variable winds. Patchy fog.
.FRIDAY...Light and variable winds. Patchy fog during the day.
.SATURDAY...Southeast winds 10 knots or less. A chance of showers
during the day, then showers likely Saturday night.

Winds and waves higher in and near thunderstorms.

$$