Great Lakes Forecast
Issued by NWS

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985
FZUS61 KBUF 282102
GLFSL

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

SLZ022-290400-
Saint Lawrence River from Cape Vincent to Ogdensburg-
402 PM EST Sun Dec 28 2025

.TONIGHT...Northeast winds 10 knots or less becoming east 10 to
15 knots. Freezing rain this evening, then rain showers and
freezing rain after midnight.
.MONDAY...Southeast winds 15 to 25 knots becoming southwest to
30 knots. Rain showers, a chance of snow showers and freezing
rain in the morning, then snow showers with a chance of rain
showers in the afternoon.
.MONDAY NIGHT...Southwest winds to 30 knots becoming west 15 to
25 knots. Snow showers.
.TUESDAY...West winds 15 to 25 knots. Snow showers likely in the
morning, then a chance of snow showers in the afternoon.
.TUESDAY NIGHT...West winds 15 to 20 knots diminishing to 5 to
15 knots. A chance of snow showers overnight.
.WEDNESDAY...Southwest winds 5 to 15 knots becoming west less
than 10 knots. Snow showers likely.
.THURSDAY...West winds less than 10 knots becoming southwest. A
chance of snow showers.
.FRIDAY...Southwest winds 10 knots or less. A chance of snow
showers.

$$

SLZ024-290400-
Saint Lawrence River from Ogdensburg to Saint Regis-
402 PM EST Sun Dec 28 2025

.TONIGHT...Northeast winds 5 to 15 knots becoming east. Freezing
rain.
.MONDAY...East winds 15 to 20 knots becoming southwest and
increasing to 30 knots. Rain showers and freezing rain early,
then rain showers likely late in the morning. Snow showers likely
with a chance of rain showers in the afternoon.
.MONDAY NIGHT...Southwest winds to 30 knots becoming west. Snow
showers.
.TUESDAY...West winds to 30 knots diminishing to 15 to 25 knots.
Snow showers in the morning, then a chance of snow showers in the
afternoon.
.TUESDAY NIGHT...West winds 15 to 25 knots diminishing to 10 to
15 knots. A chance of snow showers overnight.
.WEDNESDAY...Southwest winds 5 to 15 knots becoming west. Snow
showers likely.
.THURSDAY...Southwest winds 10 knots or less. Mostly cloudy.
.FRIDAY...Southwest winds 10 knots or less. A chance of snow
showers.

$$