Home › Texas Lake Levels › Lewisville Lake
Lewisville Lake Water Level Today
Texas · Official data from the Texas Water Development Board
Water level today · September 28, 2026 (daily reading)
Normal for the date
−2.4 ft from the typical level for this date
518.22 ft above sea level
- vs full pool
- −3.8 ft
- Storage
- 82.7% full
- Past 7 days
- −0.3 ft
- vs 1 year ago
- −3.0 ft
What do these numbers mean?
- Water level
- The height of the lake surface in feet above sea level, as measured by the official gauge.
- Full pool
- The level the lake is normally kept at when it is full (top of conservation pool). Above it, the lake is storing flood water.
- Normal for the date
- The typical (median) level on this calendar date across 2006-2025. The normal range is where the lake stood in 8 of 10 years.
- % full
- How much of the reservoir's conservation storage is in use, as reported by the Texas Water Development Board.
Lewisville Lake water level chart (last 2 years)
How full is Lewisville Lake right now?
Lewisville Lake is 3.8 ft below full pool (522.0 ft). By conservation storage the reservoir is 82.7% full.
Over the past 7 days the level fell 0.35 ft; over 30 days it fell 1.6 ft.
One year ago the lake stood at 521.2 ft, so it is −3.0 ft compared with the same day last year.
Is Lewisville Lake above or below normal?
For September 28, the normal level is about 520.6 ft (the normal range is 513.9 ft to 522.8 ft). Today's level is −2.4 ft compared with normal, within the normal range.
“Normal” here means the median level recorded on this calendar date across 2006-2025. Many reservoirs are drawn down on purpose in fall and winter, so a level below full pool can still be completely normal for the season.
Recent history
| Highest daily level (last 2 years) | 524.51 ft | June 10, 2025 |
| Lowest daily level (last 2 years) | 518.22 ft | September 28, 2026 |
| Same day last year | 521.24 ft | −3.0 ft vs today |
| Full pool | 522.00 ft | top of conservation pool |
Frequently asked questions
- What is the water level of Lewisville Lake today?
- The latest reading is 518.22 ft above sea level, reported by the Texas Water Development Board on September 28, 2026.
- Is Lewisville Lake full?
- No. Lewisville Lake is 3.8 ft below its full pool of 522.0 ft and 82.7% full by conservation storage.
- What is a normal water level for Lewisville Lake at this time of year?
- Based on daily readings from 2006-2025, the typical (median) level for this date is 520.6 ft, and 8 out of 10 years fall between 513.9 ft and 522.8 ft.
- What is the full pool elevation of Lewisville Lake?
- Full pool for Lewisville Lake is 522.0 ft (top of conservation pool), according to the Texas Water Development Board.
- What were the highest and lowest levels in the last two years?
- The highest daily level in the last two years was 524.5 ft on June 10, 2025; the lowest was 518.2 ft on September 28, 2026.
Where this data comes from
The water level is published by the Texas Water Development Board (station Lewisville) and refreshed on this page every day. Full pool comes from Texas Water Development Board; the normal range is calculated from official daily readings for 2006-2025. Recent readings are provisional and may be revised. See data sources & methodology.