Lake Hamilton Water Level
Arkansas · updated daily from the U.S. Geological Survey
399.55 ft
Lake Hamilton is current reading available and steady (-0.08 ft in the last 7 days).
Change since yesterday: +0.05 ft
Reading as of 2026-08-15
Where Lake Hamilton sits historically
Today's level compared with every reading in our 0.3-year record for this lake.
Since yesterday
+0.05 ft
7-day change
-0.08 ft
30-day change
-0.10 ft
1-year change
— ft
Last 30 days
Last 12 months
Lake Hamilton records and averages
| Current level | 399.55 ft |
|---|---|
| Record high | 399.75 ft (2026-05-16) |
| Record low | 399.46 ft (2026-06-23) |
| Average of all readings | 399.61 ft |
| Data span | 0.3 years (121 readings) |
Frequently asked questions
Is Lake Hamilton full right now?
As of 2026-08-15, Lake Hamilton sits at 399.55 ft, which is current reading available.Over the past 30 days the level has fallen 0.10 ft.
What is the water level at Lake Hamilton today?
The most recent reading is 399.55 ft (2026-08-15), sourced from the U.S. Geological Survey. Readings on this page refresh automatically as the agency publishes new data.
What is the highest Lake Hamilton has ever been?
The highest level in our records is 399.75 ft on 2026-05-16. The lowest is 399.46 ft on 2026-06-23. Our record covers about 0.3 years of readings.
Why is Lake Hamilton changing right now?
Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Lake Hamilton has fallen 0.10 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.
How much has Lake Hamilton changed over the past year?
Year-over-year comparison is not available for this lake yet. The full-history chart above covers 0.3 years, with a record high of 399.75 ft and a record low of 399.46 ft.
Nearby lakes in Arkansas
Source: the U.S. Geological Survey. Readings are provisional and subject to revision by the publishing agency. All Arkansas lake levels.