Great Lakes Forecast
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949
FZUS61 KBUF 120203
GLFSL

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
1003 PM EDT Thu Jun 11 2026

SLZ022-024-120900-
Saint Lawrence River from Cape Vincent to Saint Regis
1003 PM EDT Thu Jun 11 2026

.OVERNIGHT...Southwest winds 10 knots or less. Mostly
cloudy.
.FRIDAY...South winds 5 to 15 knots becoming southwest. A chance
of showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...Southwest winds 5 to 15 knots diminishing to less
than 10 knots. Mainly clear.
.SATURDAY...Southwest winds 10 knots or less. Sunny.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots. Partly cloudy.
.SUNDAY...Southwest winds 5 to 15 knots. Showers with a chance of
thunderstorms.
.MONDAY...West winds 5 to 15 knots becoming southwest less than
10 knots. Partly cloudy.
.TUESDAY...Southwest winds 10 knots or less. Partly cloudy.

Winds and waves higher in and near thunderstorms.

$$