Lake Arlington, TX

Lake Arlington is at 83.9% of conservation capacity as of 2026-10-13, which we classify as below full. That is 3.44 ft below full pool of 550.00 ft. Over the past 30 days the level has risen 2.48 ft.

The most recent reading at Lake Arlington is 546.56 ft (2026-10-13), sourced from the Texas Water Development Board. Readings on this page refresh automatically as the agency publishes new data.

The highest level for Lake Arlington in our records is 562.00 ft on 1989-05-18. The lowest is 538.00 ft on 1988-08-30. Our record covers about 38 years of readings.

Compared with every October in our records, the current level is higher than 76% of them, which we classify as below full. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.

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 Arlington has risen 2.48 ft over the past 30 days. For the operational reason on any given week, check the Texas Water Development Board directly.

Lake Arlington is -0.32 ft compared with this date last year (546.56 ft today). The full-history chart above covers 38 years, with a record high of 562.00 ft and a record low of 538.00 ft.