Lake levels › New York

Lake Ontario water level today

Latest reading

245.68ft

feet above sea level ·

24 hours−0.09 ft
7 days−0.1 ft
30 days−1.0 ft
vs a year ago+1.0 ft

Is Lake Ontario low right now?

Lake Ontario was at 245.68 ft on October 10, 2026. Over the past week the lake has been steady.

Last 12 monthsDaily level
244245246247248NovDecJanFebMarAprMayJunJulAugSepOct

Daily levels, last two weeks

DateLevel (ft)Change
Oct 10245.68−0.09
Oct 1245.77−0.04
Sep 30245.81−0.03
Sep 29245.84−0.01
Sep 28245.85±0.00
Sep 27245.85−0.05
Sep 26245.90−0.03
Sep 25245.93±0.00
Sep 24245.93−0.04
Sep 23245.97−0.05
Sep 22246.02−0.10
Sep 21246.12−0.10
Sep 20246.22−0.06
Sep 19246.28−0.12

Daily means of the operator's readings (midnight to midnight, local time).

About Lake Ontario

Data
NOAA Tides & Currents (Great Lakes) — station 9052030, Oswego, NY
Datum
IGLD 1985

Lakes near Lake Ontario

Questions

Is Lake Ontario low right now?

Lake Ontario was at 245.68 ft on October 10, 2026. Over the past week the lake has been steady.

How often is the Lake Ontario level updated?

The operator reports every 6 minutes. This page refreshes several times a day; the time of the latest reading is shown next to the level.

Where does this data come from?

NOAA Tides & Currents (Great Lakes) (station 9052030, Oswego, NY). Readings are provisional and can be revised.