Allatoona Lake Water Level
Georgia · updated daily from the U.S. Geological Survey
840.79 ft
Allatoona Lake is high for this time of year and steady (-0.12 ft in the last 7 days).
Change since yesterday: -0.07 ft
Reading as of 2026-08-14 · higher than 95% of August readings on record
Where Allatoona Lake sits historically
Today's level compared with every reading in our 37.6-year record for this lake.
Since yesterday
-0.07 ft
7-day change
-0.12 ft
30-day change
+0.24 ft
1-year change
+1.38 ft
Last 30 days
Last 12 months
Full history (37.6 years)
Allatoona Lake records and averages
| Current level | 840.79 ft |
|---|---|
| Record high | 855.81 ft (1990-03-23) |
| Record low | 818.9 ft (2007-12-14) |
| Average of all readings | 835.56 ft |
| Data span | 37.6 years (7,680 readings) |
Frequently asked questions
Is Allatoona Lake full right now?
As of 2026-08-14, Allatoona Lake sits at 840.79 ft, which is high for this time of year.Over the past 30 days the level has risen 0.24 ft.
What is the water level at Allatoona Lake today?
The most recent reading is 840.79 ft (2026-08-14), sourced from the U.S. Geological Survey. Readings on this page refresh automatically as the agency publishes new data.
What is the highest Allatoona Lake has ever been?
The highest level in our records is 855.81 ft on 1990-03-23. The lowest is 818.9 ft on 2007-12-14. Our record covers about 37.6 years of readings.
Is Allatoona Lake low for this time of year?
Compared with every August in our records, the current level is higher than 95% of them — high for this time of year. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.
Why is Allatoona Lake 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. Allatoona Lake has risen 0.24 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.
How much has Allatoona Lake changed over the past year?
The level is +1.38 ft compared with this date last year (840.79 ft today). The full-history chart above covers 37.6 years, with a record high of 855.81 ft and a record low of 818.9 ft.
Nearby lakes in Georgia
Source: the U.S. Geological Survey. Readings are provisional and subject to revision by the publishing agency. All Georgia lake levels.