Reservoir · Texas · United States · TWDB
Lake Marble Falls
98.4% full
Capacity
9.37 hm³
Volume stored
9 hm³
Vs month average
109% of normal
Coordinates
30.556°N, 98.257°W
Last updated
2026-10-14
Current fill
98.4%vs 7 days ago
+0.7%gaining
vs 1 year ago
+3.0%year-over-year
7-day trend
→stable
Drought context
Storage vs October average
109%of normal
98.4% full on 2026-10-14, against an average of 90.3% for October across 5 years of readings (+8.1 points).
Data source: Texas Water Development Board (Water Data for Texas) — daily reservoir storage volume. Design capacity is unavailable for this site, so fill % is estimated against the 5-year maximum storage and may overstate fullness. Last reading: 2026-10-14.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
About Lake Marble Falls
As of October 14, 2026, Lake Marble Falls is filled to 98.4% of its total capacity, holding roughly 9 hm³ of water out of a maximum 9 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (+0.7 pts), and it is 3.0 points above its level on the same date a year earlier.
Across the readings we hold for Lake Marble Falls — 1461 data points between October 15, 2022 and October 14, 2026 — the level has ranged from a low of 57.2% (October 21, 2022) to a high of 100.0% (July 5, 2025). On average the reservoir is fullest around September and at its lowest around December.
It is operated by TWDB primarily for multiple purposes. It lies within the Texas basin at 30.556°N, 98.257°W.
Key facts
- Current fill level
- 98.4%
- Water stored
- 9 hm³
- Total capacity
- 9 hm³
- 7-day change
- ▲ 0.7 pts
- Year-on-year
- ▲ 3.0 pts
- Primary use
- Multipurpose
- River basin
- Texas
- Operator
- TWDB
- Coordinates
- 30.556°N, 98.257°W
- Last updated
- October 14, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 14 Oct 2026 | 98.4% | 9 |
| 13 Oct 2026 | 98.8% | 9 |
| 12 Oct 2026 | 97.9% | 9 |
| 11 Oct 2026 | 98.8% | 9 |
| 10 Oct 2026 | 97.7% | 9 |
| 9 Oct 2026 | 97.2% | 9 |
| 8 Oct 2026 | 96.9% | 9 |
| 7 Oct 2026 | 97.7% | 9 |
| 6 Oct 2026 | 97.3% | 9 |
| 5 Oct 2026 | 95.3% | 9 |
| 4 Oct 2026 | 94.7% | 9 |
| 3 Oct 2026 | 93.5% | 9 |