Great Lakes Forecast
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153
FZUS61 KBUF 252002
GLFSL

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
402 PM EDT Tue Aug 25 2026

SLZ022-024-260300-
Saint Lawrence River from Cape Vincent to Saint Regis
402 PM EDT Tue Aug 25 2026

.TONIGHT...West winds less than 10 knots. A chance of showers
early. Patchy fog from late evening on.
.WEDNESDAY...Light and variable winds. Patchy fog in the morning.
.WEDNESDAY NIGHT...South winds 10 knots or less. Partly cloudy.
.THURSDAY...South winds 10 to 15 knots becoming southwest. A
chance of showers and thunderstorms in the morning, then showers
and thunderstorms likely in the afternoon.
.THURSDAY NIGHT...Southwest winds 10 knots or less becoming west.
Showers and thunderstorms likely in the evening, then a chance of
showers and thunderstorms overnight.
.FRIDAY...Northwest winds less than 10 knots. Partly cloudy, then
becoming mainly clear.
.SATURDAY...Light and variable winds. Mainly clear.
.SUNDAY...Southwest winds 10 knots or less. A chance of showers
Sunday night.

Winds and waves higher in and near thunderstorms.

$$