Great Lakes Forecast
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431
FZUS61 KBUF 301403
GLFSL

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
1003 AM EDT Tue Jun 30 2026

SLZ022-024-302100-
Saint Lawrence River from Cape Vincent to Saint Regis
1003 AM EDT Tue Jun 30 2026

.THIS AFTERNOON...Southwest winds 5 to 15 knots. A chance of
showers and thunderstorms.
.TONIGHT...Southwest winds 5 to 10 knots. A chance of showers and
thunderstorms in the evening. A chance of showers and
thunderstorms late.
.WEDNESDAY...Southwest winds 5 to 10 knots. A chance of showers
and thunderstorms.
.WEDNESDAY NIGHT...Southwest winds 10 knots or less. A chance of
showers and thunderstorms in the evening.
.THURSDAY...Southwest winds 5 to 15 knots. A chance of showers
and thunderstorms.
.FRIDAY...West winds 10 knots or less becoming southwest. Partly
cloudy.
.SATURDAY...West winds less than 10 knots. A chance of showers
and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$