Great Lakes Forecast
Issued by NWS

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077
FZUS61 KBUF 280902
GLFSL

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
402 AM EST Sun Dec 28 2025

SLZ022-281600-
Saint Lawrence River from Cape Vincent to Ogdensburg-
402 AM EST Sun Dec 28 2025

.TODAY...Light and variable winds. A chance of freezing rain
late.
.TONIGHT...Northeast winds 10 knots or less becoming east 10 to
15 knots. Freezing rain in the evening, then freezing rain and
rain after midnight.
.MONDAY...Southeast winds 15 to 25 knots becoming southwest to
30 knots. Rain showers, snow showers and freezing rain in the
morning, then snow and rain showers in the afternoon.
.MONDAY NIGHT...Southwest winds to 30 knots becoming west 15 to
25 knots. Lake effect snow showers.
.TUESDAY...West winds 15 to 25 knots diminishing to 5 to
10 knots. Snow showers during the day, then a chance of snow
showers Tuesday night.
.WEDNESDAY...Southwest winds 5 to 10 knots becoming west. Lake
effect snow showers.
.THURSDAY...West winds 10 knots or less becoming southwest. A
chance of snow showers.

$$

SLZ024-281600-
Saint Lawrence River from Ogdensburg to Saint Regis-
402 AM EST Sun Dec 28 2025

.TODAY...Light and variable winds. Partly sunny this morning,
then becoming mostly cloudy.
.TONIGHT...Northeast winds 5 to 15 knots. A chance of freezing
rain early, then freezing rain from late evening on.
.MONDAY...East winds 15 to 20 knots becoming southwest and
increasing to 30 knots. Rain showers and freezing rain in the
morning, then rain showers with snow showers and freezing rain
likely in the afternoon.
.MONDAY NIGHT...Southwest winds to 30 knots becoming west. Lake
effect snow showers with freezing lake effect rain likely in the
evening, then lake effect snow showers overnight.
.TUESDAY...West winds to 30 knots diminishing to 10 to 15 knots.
Snow showers during the day, then a chance of snow showers
Tuesday night.
.WEDNESDAY...Southwest winds 5 to 10 knots becoming west. Lake
effect snow showers likely.
.THURSDAY...Southwest winds 5 to 10 knots. A chance of snow
showers.

$$