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
067
FZUS61 KBUF 181402
GLFSL

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
1002 AM EDT Mon Aug 18 2025

SLZ022-024-182100-
Saint Lawrence River from Cape Vincent to Saint Regis
1002 AM EDT Mon Aug 18 2025

.THIS AFTERNOON...Northeast winds 5 to 10 knots. Sunny.
.TONIGHT...Northeast winds 10 knots or less becoming east. Partly
cloudy in the evening, then becoming mostly cloudy.
.TUESDAY...East winds less than 10 knots. Partly sunny.
.TUESDAY NIGHT...East winds 10 knots or less becoming southeast.
A chance of showers in the evening, then showers likely
overnight.
.WEDNESDAY...Southeast winds 10 knots or less becoming northeast.
Showers likely during the day, then a chance of showers Wednesday
night.
.THURSDAY...Northeast winds 10 knots or less. Becoming mainly
clear.
.FRIDAY...Northeast winds 10 knots or less becoming south. Mainly
clear, then becoming partly cloudy.

$$