Grand Lake St Marys Water Level Today

Current elevation 870.94 ft Reported Nov 4, 2026, 4:15 AM EST · Elevation above NGVD 1929 · U.S. Geological Survey, gauge 403204084342601 · Provisional data

As of Nov 4, 2026, 4:15 AM EST, Grand Lake St Marys is at 870.94 ft.

Grand Lake St Marys level history

The chart appears once we have two days of readings. We add one reading a day.

Last reading
Date	Elevation	Daily change	Storage
Nov 4, 2026	870.94 ft	—	—

Lakes near Grand Lake St Marys

Lake Loramie 17 mi · 953.73 ft Indian Lake 37 mi · 996.03 ft J. Edward Roush Lake 52 mi · 745.85 ft C. J. Brown Reservoir 60 mi · 1,010.15 ft Salamonie Lake 61 mi · 748.38 ft Mississinewa Lake 74 mi · 732.34 ft

All Ohio lake levels

FAQ

What is the Grand Lake St Marys water level today?

870.94 ft as of Nov 4, 2026, 4:15 AM EST, reported by the U.S. Geological Survey.

How often is this page updated?

Every 3 hours. The gauge reports several times a day.

Data: U.S. Geological Survey, gauge 403204084342601 (official page). Provisional data, subject to revision. For information only. Not for navigation or flood safety decisions. Check the official source. LakeLevelHQ is not affiliated with any government agency.