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FZUS61 KBUF 170803
GLFSL

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
402 AM EDT Thu Jul 17 2025

SLZ022-024-171500-
Saint Lawrence River from Cape Vincent to Saint Regis
402 AM EDT Thu Jul 17 2025

.TODAY...South winds 5 to 15 knots becoming southwest 15 to
20 knots. A chance of showers and thunderstorms this morning,
then showers with a chance of thunderstorms this afternoon. Some
thunderstorms may produce gusty winds this afternoon.
.TONIGHT...West winds 15 to 20 knots becoming northwest and
diminishing to 5 to 10 knots. Showers with a chance of
thunderstorms early. Some thunderstorms may produce gusty winds
early.
.FRIDAY...Northwest winds 10 knots or less becoming west. Sunny.
.FRIDAY NIGHT...Southwest winds less than 10 knots. Mainly clear
in the evening, then becoming partly cloudy.
.SATURDAY...Southwest winds 10 knots or less becoming west. A
chance of showers during the day, then a chance of showers and
thunderstorms Saturday night.
.SUNDAY...Northwest winds 10 knots or less becoming north. A
chance of showers during the day.
.MONDAY...North winds less than 10 knots becoming south. Mainly
clear.

Winds and waves higher in and near thunderstorms.

$$