Great Lakes Forecast
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983
FZUS61 KBUF 251404
GLFSL

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
1003 AM EDT Sat Jul 25 2026

SLZ022-024-252100-
Saint Lawrence River from Cape Vincent to Saint Regis
1003 AM EDT Sat Jul 25 2026

.THIS AFTERNOON...Southwest winds 5 to 10 knots. Sunny.
.TONIGHT...Southwest winds less than 10 knots. Partly cloudy
early, then becoming mostly cloudy.
.SUNDAY...South winds less than 10 knots becoming southwest. A
chance of showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...Southwest winds less than 10 knots. Partly
cloudy.
.MONDAY...South winds 10 knots or less. Showers with a chance of
thunderstorms.
.TUESDAY...Southeast winds 10 knots or less becoming north.
Showers with a chance of thunderstorms.
.WEDNESDAY...North winds 10 knots or less. Showers likely with a
chance of thunderstorms.

Winds and waves higher in and near thunderstorms.

$$