Water level
No public level gauge is matched to Lake Ontario yet. Wind and weather on this page still come straight from the National Weather Service.
New YorkGreat Lake, 4,578,616 acres
Lake Ontario conditions today
Right now on Ontario
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Best window
0pm to 0pm
score
Wind
00kt
Gusts 00
Direction
NE
Blowing from
Air temp
00°F
High
Rain
Dry%
next 6 hours
Sky
Sunny
cloud cover
Sailing
CheckingReading the forecast
Kayak and SUP
CheckingReading the forecast
Power boating
CheckingReading the forecast
Fishing
CheckingReading the forecast
Hour by hour
Next 24 hours
Wind and gusts0 to 30+ ktScoreGood, caution, stay ashoreNightBest windowArrows point where the wind blows to.
Outlook. Monday: WNW wind 10 to 14 kt, gusts to 17 kt, high near 58°F. Tuesday: ENE wind 4 to 13 kt, gusts to 15 kt, high near 48°F.
7-day wind forecastLive radar
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LightHeavy
Last hour of NOAA MRMS radar, 1 km resolution. Map data © OpenStreetMap contributors, OpenMapTiles, OpenFreeMap.
Lake facts
- Type
- Great Lake
- State
- New York
- Surface area
- 4,578,616 acres
- Elevation
- 243 ft
- Max depth
- 801 ft
- Volume
- 1,328,758,925 acre-ft
- Coordinates
- 43.7289° N, 78.1064° W
Background reading: Lake Ontario on Wikipedia
About Lake Ontario
Set in New York, Lake Ontario is a 4,578,616-acre Great Lakes shoreline. The surface sits about 243 ft above sea level and the deepest point is roughly 801 ft down.
We have not matched Lake Ontario to a public USGS level gauge, so this page leans on wind and weather from the National Weather Service forecast grid over the lake. If you know of a gauge or a lake association that publishes levels, tell us and we will add it.
Great Lakes shorelines behave more like a coast than a lake. Onshore wind over long fetch builds real swell, and the National Weather Service issues Small Craft Advisories here the same way it does at sea.
The go or no-go calls above are a starting point, not a guarantee. Read how we score conditions, and always check local rules and posted warnings before you launch.
Lake Ontario questions
Is it windy on Lake Ontario today?
The National Weather Service forecast for the lake from October 26: Monday: WNW wind 10 to 14 kt, gusts to 17 kt, high near 58°F. The panel at the top of this page refreshes the current wind, gusts and direction when you open it and turns them into a call for sailing, paddling, power boating and fishing.
How big is Lake Ontario?
Lake Ontario covers about 4,578,616 acres (7,154 square miles) of surface water.
How deep is Lake Ontario?
The deepest point of Lake Ontario is roughly 801 ft.
Nearby lakes
If Ontario is blown out, these are the closest alternatives. Tap through for their conditions.