Great Lakes Forecast
Issued by NWS

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005
FZUS61 KBUF 302124
GLFSL

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
524 PM EDT Tue Jun 30 2026

SLZ022-024-010315-
Saint Lawrence River from Cape Vincent to Saint Regis
524 PM EDT Tue Jun 30 2026

.TONIGHT...Southwest winds 5 to 10 knots. A chance of showers and
thunderstorms early. A chance of showers late.
.WEDNESDAY...Southwest winds 5 to 10 knots. A chance of showers
early.
.WEDNESDAY NIGHT...Southwest winds 10 knots or less. Partly
cloudy.
.THURSDAY...Southwest winds 5 to 15 knots. Showers likely with a
chance of thunderstorms in the afternoon.
.THURSDAY NIGHT...Southwest winds 5 to 15 knots diminishing to
less than 10 knots. Showers likely with a chance of thunderstorms
in the evening, then a chance of showers overnight.
.FRIDAY...Southwest winds 10 knots or less. A chance of showers.
.SATURDAY...West winds less than 10 knots. A chance of showers
and thunderstorms.
.SUNDAY...Light and variable winds. A chance of showers Sunday
night.

Winds and waves higher in and near thunderstorms.

$$