Grapevine Lake, TX

Grapevine Lake is at 92.3% of conservation capacity as of 2026-10-13, which we classify as near full. That is 1.96 ft below full pool of 535.00 ft. Over the past 30 days the level has risen 0.06 ft.

The most recent reading at Grapevine Lake is 533.04 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 Grapevine Lake in our records is 562.98 ft on 2015-06-20. The lowest is 521.78 ft on 2006-12-28. Our record covers about 36 years of readings.

Compared with every October in our records, the current level is higher than 54% of them, which we classify as near 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. Grapevine Lake has risen 0.06 ft over the past 30 days. For the operational reason on any given week, check the Texas Water Development Board directly.

Grapevine Lake is -0.66 ft compared with this date last year (533.04 ft today). The full-history chart above covers 36 years, with a record high of 562.98 ft and a record low of 521.78 ft.