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Lake levels › Texas › Lewisville Lake

Lewisville Lake water level today

518.17 ft above sea level (the reading for October 19, 2026). The lake is 82.5% full, 3.83 ft below full pool (522.00 ft). Lewisville Lake is falling slowly: down 0.24 ft in the past 7 days and down 0.50 ft over 30 days.

Texas Water Development Board publishes one reading per day for Lewisville Lake; today's value appears once the agency posts it, usually the next morning.

Level now518.17 ft
Percent full82.5%
vs full pool (522.0)−3.83 ft
Past 24 hours−0.03 ft
Past 7 days−0.24 ft
Past 30 days−0.50 ft
vs 1 year ago−2.37 ft

Lewisville Lake level over the last 12 months

518519521523525 Oct 25Dec 25Feb 26Apr 26Jun 26Aug 26Oct 26 full pool 522.0
Daily elevation in feet, last 12 months.

12-month low: 518.09 ft (September 30, 2026). High: 524.49 ft (June 22, 2026). Swing: 6.40 ft.

Daily Lewisville Lake levels, last 30 days

DateElevation (ft)Change
Oct 19, 2026518.17−0.03 ft
Oct 18, 2026518.20−0.03 ft
Oct 17, 2026518.23−0.15 ft
Oct 16, 2026518.38+0.02 ft
Oct 15, 2026518.36−0.01 ft
Oct 14, 2026518.37−0.02 ft
Oct 13, 2026518.39−0.02 ft
Oct 12, 2026518.41−0.03 ft
Oct 11, 2026518.44−0.06 ft
Oct 10, 2026518.50−0.02 ft
Oct 9, 2026518.52−0.01 ft
Oct 8, 2026518.53−0.03 ft
Oct 7, 2026518.56−0.01 ft
Oct 6, 2026518.57±0.00 ft
Oct 5, 2026518.57−0.01 ft
Oct 4, 2026518.58+0.02 ft
Oct 3, 2026518.56+0.02 ft
Oct 2, 2026518.54+0.24 ft
Oct 1, 2026518.30+0.21 ft
Sep 30, 2026518.09−0.07 ft
Sep 29, 2026518.16−0.04 ft
Sep 28, 2026518.20−0.06 ft
Sep 27, 2026518.26−0.05 ft
Sep 26, 2026518.31−0.05 ft
Sep 25, 2026518.36−0.04 ft
Sep 24, 2026518.40−0.06 ft
Sep 23, 2026518.46−0.06 ft
Sep 22, 2026518.52−0.05 ft
Sep 21, 2026518.57−0.04 ft
Sep 20, 2026518.61−0.06 ft

Monthly average levels

MonthAverageLowHigh
Nov 2025521.25520.71522.22
Dec 2025522.05521.95522.14
Jan 2026521.62521.42521.93
Feb 2026521.77521.38522.17
Mar 2026522.16521.90522.55
Apr 2026522.30521.88523.01
May 2026522.20522.01522.37
Jun 2026523.32522.14524.49
Jul 2026522.20521.43523.17
Aug 2026520.52519.66521.38
Sep 2026518.85518.09519.61
Oct 2026 *518.43518.17518.58

* partial month or year.

Lewisville Lake year by year

YearLowHighAverage
2026 *518.09 Sep 30524.49 Jun 22521.45
2025519.53 Jan 8524.51 Jun 10521.39
2024518.67 Dec 6531.28 Jun 9522.41
2023 *516.34 Oct 23520.43 Dec 31519.23

Lewisville Lake on this date in past years

YearLevel on this dateToday vs then
2025520.54 ft−2.37 ft
2024519.61 ft−1.44 ft
2023516.48 ft+1.69 ft

Highest and lowest levels on record

TWDB records for Lewisville Lake go back to 1988. The lowest level in that record is 507.05 ft (October 15, 2000) and the highest is 536.79 ft (May 31, 2015). Today the lake is 11.12 ft above its record low. At full conservation pool it holds 563,228 acre-feet and covers about 24,494 acres.

Is Lewisville Lake full?

Lewisville Lake is 82.5% full by conservation storage, measured against its top of conservation pool at 522.00 ft. It would need to rise 3.83 ft to be full.

Is Lewisville Lake rising or falling?

Lewisville Lake is falling slowly: down 0.24 ft in the past 7 days and down 0.50 ft over 30 days. In the latest day it moved −0.03 ft.

How does Lewisville Lake compare with last year?

Compared with the same date last year, the lake is 2.37 ft lower (93.1% full then, 82.5% now). Two years ago on this date it stood at 519.61 ft.

Data source

Texas Water Development Board (Water Data for Texas), gauge Lewisville; readings since Oct 16, 2023. Official source · how we collect it.

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