National Weather Service Marine Forecast FZUS61 KBUF

FZUS61 KBUF 292003
GLFSL

Forecast for the Saint Lawrence River
including the Thousand Islands Region
National Weather Service Buffalo NY
403 PM EDT Fri May 29 2026

SLZ022-024-300300
Saint Lawrence River from Cape Vincent to Saint Regis 403 PM EDT Fri May 29 2026

TONIGHT
Northwest winds 15 to 20 knots becoming north. Showers likely through the early overnight, then a chance of showers late.

SATURDAY
North winds 15 to 20 knots becoming northeast 5 to 15 knots. Becoming mostly sunny.

SATURDAY NIGHT
Northeast winds 5 to 10 knots becoming light and variable. Mainly clear in the evening, then becoming partly cloudy.

SUNDAY
Southwest winds 10 knots or less becoming west. A chance of showers in the afternoon.

SUNDAY NIGHT
West winds 5 to 10 knots becoming light and variable. A chance of showers.

MONDAY
North winds less than 10 knots. A chance of showers during the day.

TUESDAY
North winds less than 10 knots. Partly cloudy.

WEDNESDAY
North winds less than 10 knots. Mainly clear.