Great Lakes Forecast
Issued by NWS

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987
FZUS61 KBUF 261403
GLFSL

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
1003 AM EDT Sat Sep 26 2026

SLZ022-024-262100-
Saint Lawrence River from Cape Vincent to Saint Regis
1003 AM EDT Sat Sep 26 2026

.THIS AFTERNOON...Northeast winds 10 to 15 knots. Mostly sunny.
.TONIGHT...Northeast winds 10 to 15 knots increasing to 15 to
20 knots. Mostly cloudy.
.SUNDAY...Northeast winds 15 to 20 knots diminishing to 10 to
15 knots. A chance of showers.
.SUNDAY NIGHT...Northeast winds 5 to 15 knots. A chance of
showers in the evening.
.MONDAY...Northeast winds 10 knots or less. Mostly cloudy.
.TUESDAY...Light and variable winds. Partly to mostly cloudy.
.WEDNESDAY...South winds 10 knots or less becoming southwest.
Mostly cloudy.

$$