William H. Harsha Lake Water Level Today

Current elevation 730.08 ft 2.92 ft below full pool (733.00 ft)

▼ 0.01 ft in 24 h▼ 0.24 ft in 7 days 0.14 ft above the average for this date Storage 84,401 acre-ft

Reported Nov 4, 2026, 3:30 AM EST · Elevation above NGVD 1929 · U.S. Army Corps of Engineers, station WHHarsha · Provisional data

As of Nov 4, 2026, 3:30 AM EST, William H. Harsha Lake is at 730.08 ft, 2.92 ft below full pool. The level has fallen 0.24 ft over the last 7 days. That is 0.14 ft above the average for this date.

William H. Harsha Lake level history

Level Full pool Average for this date, previous 5 years

Last 14 days
Date	Elevation	Daily change	Storage
Nov 4, 2026	730.08 ft	−0.01 ft	84,401 acre-ft
Nov 3, 2026	730.09 ft	−0.04 ft	84,401 acre-ft
Nov 2, 2026	730.13 ft	−0.03 ft	84,445 acre-ft
Nov 1, 2026	730.16 ft	−0.03 ft	84,462 acre-ft
Oct 31, 2026	730.19 ft	−0.05 ft	84,568 acre-ft
Oct 30, 2026	730.24 ft	−0.04 ft	84,670 acre-ft
Oct 29, 2026	730.28 ft	−0.04 ft	84,752 acre-ft
Oct 28, 2026	730.32 ft	−0.04 ft	84,830 acre-ft
Oct 27, 2026	730.36 ft	−0.03 ft	84,912 acre-ft
Oct 26, 2026	730.39 ft	−0.04 ft	84,977 acre-ft
Oct 25, 2026	730.43 ft	−0.04 ft	85,055 acre-ft
Oct 24, 2026	730.47 ft	−0.03 ft	85,120 acre-ft
Oct 23, 2026	730.50 ft	−0.04 ft	85,198 acre-ft
Oct 22, 2026	730.54 ft	−0.03 ft	85,280 acre-ft

Is William H. Harsha Lake full?

William H. Harsha Lake is not full: at 730.08 ft it is 2.92 ft below full pool (733.00 ft). Over the last 7 days the level changed by −0.24 ft.

How does William H. Harsha Lake compare with other years?

The average for this date over the previous 5 years is 729.94 ft, so today’s level is 0.14 ft above the average for this date.

William H. Harsha Lake level history

In the 1828 days we have on record (Nov 3, 2021 to Nov 4, 2026), the highest level was 762.98 ft on Apr 8, 2025 and the lowest was 728.82 ft on Nov 8, 2024.

William H. Harsha Lake storage

The reservoir held 84,401 acre-ft of water at the last reading (Nov 3, 2026, 6:00 AM EST).

Lakes near William H. Harsha Lake

West Fork of Mill Creek Lake 25 mi · 675.18 ft Caesar Creek Lake 33 mi · 846.90 ft Paint Creek Lake 45 mi · 792.89 ft Brookville Lake 54 mi · 744.69 ft Deer Creek Lake 65 mi · 803.53 ft C. J. Brown Reservoir 68 mi · 1,010.15 ft

All Ohio lake levels

FAQ

What is the William H. Harsha Lake water level today?

730.08 ft as of Nov 4, 2026, 3:30 AM EST, reported by the U.S. Army Corps of Engineers.

What is full pool for William H. Harsha Lake?

733.00 ft, according to the official source linked on this page.

How often is this page updated?

Every 3 hours. The gauge reports every 15 minutes.

What is the highest and lowest level of William H. Harsha Lake?

In the period we have (since Nov 3, 2021): 762.98 ft and 728.82 ft.

Data: U.S. Army Corps of Engineers, station WHHarsha (official page). Provisional data, subject to revision. Full pool: official source. For information only. Not for navigation or flood safety decisions. Check the official source. LakeLevelHQ is not affiliated with any government agency.