Marine Forecasts

• Niagara River to Hamlin Beach
• Hamlin Beach to Sodus Bay
• Sodus Bay to Mexico Bay
• Mexico Bay to St. Lawrence River

• Tonight
  East winds 5 to 10 knots becoming south. Becoming mainly clear. Waves 1 foot or less.
• Thursday
  South winds 5 to 15 knots becoming southwest 15 to 20 knots. Sunny. Waves 1 to 3 feet.
• Thursday Night
  Southwest winds 15 to 20 knots becoming northwest. Showers likely in the evening, then a chance of showers overnight. Waves 1 to 3 feet building to 3 to 5 feet. Waves occasionally around 6 feet.
• Friday
  Northwest winds 15 to 20 knots becoming west. Partly sunny. Waves 3 to 6 feet. Waves occasionally around 7 feet.
• Friday Night
  Northwest winds 15 to 20 knots diminishing to 5 to 10 knots. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet. Waves occasionally around 6 feet.
• Saturday
  Northwest winds 10 knots or less becoming south. Mainly clear, then becoming partly cloudy. Waves 2 feet or less.
• Sunday
  Southeast winds 10 knots or less becoming south. Partly cloudy. Waves 1 foot or less.
• Monday
  Southwest winds 10 knots or less becoming southeast. Mostly cloudy. Waves 1 foot or less.

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 PM EDT Wed Oct 28 2026

For waters beyond five nautical miles of shore on Lake Ontario

Waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. Occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.SYNOPSIS...A ridge averaging 30.6 inches affects the lake through 
Thursday as the embedded high pressure center wobbles southeastward 
from northern Ontario to North Atlantic waters southeast of the 
Canadian Maritimes. The ridge exits eastward Thursday night as a 
cold front sweeps eastward across the lake. Behind the front, 
another ridge averaging 30.2 inches builds from the western Great 
Lakes through this Saturday. The high will drift eastward while a 
29.9 inch low is expected to move into the Lower Mississippi Valley 
Sunday.

LOZ062-290300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 PM EDT Wed Oct 28 2026

.TONIGHT...East winds 5 to 10 knots becoming southwest. Waves
1 foot or less. 
.THURSDAY...Southwest winds 5 to 15 knots increasing to 15 to
20 knots. A chance of showers late. Waves 2 feet or less building
to 3 to 5 feet. 
.THURSDAY NIGHT...Southwest winds 15 to 20 knots becoming
northwest. A chance of showers in the evening. Waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.FRIDAY...Northwest winds 15 to 20 knots becoming west. Waves
2 to 4 feet. 
.FRIDAY NIGHT...Northwest winds 5 to 15 knots. Waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.SATURDAY...Light and variable winds. Waves 1 foot or less. 
.SUNDAY...East winds less than 10 knots. Waves 1 foot or less. 
.MONDAY...Southwest winds less than 10 knots becoming east. Waves
1 foot or less. 

$$

LOZ063>065-290300-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 PM EDT Wed Oct 28 2026

.TONIGHT...East winds 5 to 15 knots becoming south. Waves 1 to
3 feet. 
.THURSDAY...South winds 10 to 15 knots becoming southwest 15 to
20 knots. A chance of showers late. Waves 1 to 3 feet building to
2 to 4 feet. 
.THURSDAY NIGHT...Southwest winds 15 to 20 knots becoming
northwest. Showers likely in the evening, then a chance of
showers overnight. Waves 3 to 5 feet. 
.FRIDAY...Northwest winds 15 to 20 knots becoming west. Waves
3 to 6 feet. 
.FRIDAY NIGHT...Northwest winds 15 to 20 knots diminishing to
10 to 15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet. 
.SATURDAY...Northwest winds 10 knots or less becoming south.
Waves 2 feet or less. 
.SUNDAY...Southeast winds 10 knots or less becoming south. Waves
1 foot or less. 
.MONDAY...Southwest winds 10 knots or less becoming southeast.
Waves 1 foot or less. 

$$

LOZ061-290300-
MAFOR 2821/
ONTARIO WEST 1/2 12200 11400 12500 11510 12520. Waves 1 foot or
less tonight. Waves 2 feet or less building to 3 to 5 feet
Thursday. 

ONTARIO EAST 1/2 11200 11310 14410 11410 11510. Waves 1 to 3
feet. 

$$