Great Lakes Forecast
Issued by NWS

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254
FZUS61 KBUF 121402
GLFSL

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
1002 AM EDT Sat Jul 12 2025

SLZ022-024-122100-
Saint Lawrence River from Cape Vincent to Saint Regis
1002 AM EDT Sat Jul 12 2025

.THIS AFTERNOON...South winds 10 knots or less. A chance of
showers and thunderstorms.
.TONIGHT...South winds 10 knots or less increasing to 10 to
15 knots. A chance of showers and thunderstorms early.
.SUNDAY...South winds 5 to 10 knots becoming southwest. A chance
of showers and thunderstorms in the morning, then showers with
thunderstorms likely in the afternoon.
.SUNDAY NIGHT...Southwest winds 10 knots or less. Showers with
thunderstorms likely in the evening, then showers likely
overnight.
.MONDAY...Southwest winds 10 knots or less. A chance of showers
during the day.
.TUESDAY...Southwest winds less than 10 knots becoming south.
Mainly clear.
.WEDNESDAY...South winds 10 knots or less becoming southwest. A
chance of showers Wednesday night.

Winds and waves higher in and near thunderstorms.

$$