Great Lakes Forecast
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976
FZUS61 KBUF 190803
GLFSL

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
403 AM EDT Sun Jul 19 2026

SLZ022-024-191500-
Saint Lawrence River from Cape Vincent to Saint Regis
403 AM EDT Sun Jul 19 2026

.TODAY...Northwest winds 5 to 10 knots. Patchy smoke early.
.TONIGHT...West winds 5 to 10 knots becoming light and variable.
Mainly clear.
.MONDAY...Light and variable winds becoming southwest 5 to
10 knots. Sunny.
.MONDAY NIGHT...Southwest winds 10 knots or less becoming south
10 to 15 knots. Mostly cloudy.
.TUESDAY...South winds 10 to 15 knots. Showers with a chance of
thunderstorms.
.WEDNESDAY...West winds 5 to 15 knots. Showers likely during the
day, then a chance of showers Wednesday night.
.THURSDAY...West winds 5 to 10 knots becoming light and variable.
Mainly clear.

Winds and waves higher in and near thunderstorms.

$$