Great Lakes Forecast
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947
FZUS61 KBUF 122003
GLFSL

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

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

.TONIGHT...South winds 5 to 15 knots. A chance of showers late
this evening. Showers likely after midnight, then a chance of
showers late.
.SUNDAY...Southwest winds 5 to 10 knots. A chance of showers.
.SUNDAY NIGHT...Southwest winds 5 to 15 knots becoming northwest.
A chance of showers.
.MONDAY...Northwest winds 5 to 10 knots. Sunny.
.MONDAY NIGHT...North winds less than 10 knots. Mainly clear.
.TUESDAY...South winds 5 to 15 knots increasing to 15 to
20 knots. A chance of showers Tuesday night.
.WEDNESDAY...Southwest winds 5 to 10 knots becoming light and
variable. A chance of showers.
.THURSDAY...East winds 10 knots or less becoming north. Showers
likely.

$$