Great Lakes Forecast
Issued by NWS

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
948
FZUS61 KBUF 231502
GLFSL

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
1002 AM EST Sun Nov 23 2025

SLZ022-232200-
Saint Lawrence River from Cape Vincent to Ogdensburg-
1002 AM EST Sun Nov 23 2025

.REST OF TODAY...South winds 5 to 10 knots becoming southwest.
Snow and rain late this morning, then rain early this afternoon.
Rain showers likely late.
.TONIGHT...West winds 5 to 10 knots. A chance of rain showers in
the evening.
.MONDAY...West winds 10 knots or less becoming southwest. Mostly
sunny.
.MONDAY NIGHT...South winds 10 knots or less. Mostly cloudy.
.TUESDAY...South winds 5 to 10 knots becoming southeast. Rain
showers likely.
.WEDNESDAY...South winds 5 to 15 knots becoming southwest 15 to
20 knots. Rain showers during the day, then rain showers with a
chance of snow showers Wednesday night.
.THURSDAY...Southwest winds 10 to 15 knots becoming west. A
chance of snow and rain showers during the day, then a chance of
snow showers Thursday night.

$$

SLZ024-232200-
Saint Lawrence River from Ogdensburg to Saint Regis-
1002 AM EST Sun Nov 23 2025

.REST OF TODAY...Light and variable winds. Snow late this
morning, then rain and snow this afternoon.
.TONIGHT...Southwest winds 10 knots or less becoming west. A
chance of rain and snow showers early, then a chance of rain
showers late in the evening. A chance of rain and snow showers
after midnight.
.MONDAY...West winds 5 to 10 knots becoming southwest. Partly
sunny.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Mostly cloudy.
.TUESDAY...South winds less than 10 knots becoming east. A chance
of rain showers during the day, then rain showers likely Tuesday
night.
.WEDNESDAY...Southeast winds 5 to 15 knots becoming southwest
15 to 20 knots. Rain showers.
.THURSDAY...Southwest winds 15 to 20 knots becoming west 10 to
15 knots. A chance of snow and rain showers during the day, then
a chance of snow showers Thursday night.

$$