Great Lakes Forecast
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634
FZUS61 KBUF 122003
GLFSL

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
403 PM EDT Tue May 12 2026

SLZ022-024-130300-
Saint Lawrence River from Cape Vincent to Saint Regis
403 PM EDT Tue May 12 2026

.TONIGHT...Southwest winds 5 to 10 knots becoming southeast.
Showers likely late.
.WEDNESDAY...Southeast winds 5 to 15 knots becoming south.
Showers through early afternoon, then showers likely late.
.WEDNESDAY NIGHT...South winds 10 knots or less becoming
southwest. Showers.
.THURSDAY...Southwest winds less than 10 knots becoming
northwest. Showers.
.THURSDAY NIGHT...North winds less than 10 knots. A chance of
showers in the evening.
.FRIDAY...North winds 10 knots or less becoming southwest. Mostly
cloudy.
.SATURDAY...Southwest winds 5 to 15 knots becoming west. A chance
of showers.
.SUNDAY...West winds 5 to 10 knots becoming light and variable.
Partly cloudy.

$$