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Granger Lake Water Level Today

Daily level, percent full and history for Granger Lake, on the San Gabriel River in Texas.

Updated · Source: Texas Water Development BoardTWDB

Water level

503.91ft

msl · Daily reading for Nov 7, 2026

  • 0.09 ftbelow full pool (504.0 ft)
  • 99.3%full
  • −0.01 ftin 24 h+0.03 ft in 7 days−0.10 ft in 30 days
502504506502504506502504506
  • Full pool
  • 1 yr ago

Storage 51,453 of 51,822 acre-ft

Is Granger Lake full?

No. Granger Lake is 99.3% full, 0.09 ft below full pool. It is 0.33 ft higher than a year ago (503.58 ft on Nov 7, 2025).

Granger Lake level history

Full pool 504.0 ft
View data table
DateLevel (ft)% full
Nov 7, 2026503.9199.3%
Nov 6, 2026503.9299.4%
Nov 5, 2026503.9299.4%
Nov 4, 2026503.9299.4%
Nov 3, 2026503.9199.3%
Nov 2, 2026503.8999.1%
Nov 1, 2026503.8899.1%
Oct 31, 2026503.8899.1%
Oct 30, 2026503.8698.9%
Oct 29, 2026503.8598.8%
Oct 28, 2026503.8598.8%
Oct 27, 2026503.8598.8%
Oct 26, 2026503.8598.8%
Oct 25, 2026503.8698.9%
Oct 24, 2026503.8799.0%
Oct 23, 2026503.8899.1%
Oct 22, 2026503.8999.1%
Oct 21, 2026503.8899.1%
Oct 20, 2026503.8999.1%
Oct 19, 2026503.8999.1%
Oct 18, 2026503.9099.2%
Oct 17, 2026503.9299.4%
Oct 16, 2026503.9799.8%
Oct 15, 2026504.00100%
Oct 14, 2026504.00100%
Oct 13, 2026504.00100%
Oct 12, 2026504.00100%
Oct 11, 2026504.01100%
Oct 10, 2026504.01100%
Oct 9, 2026504.01100%
Oct 8, 2026504.01100%
  • Granger Lake level
  • Full pool 504.0 ft
  • Above full pool
Source: TWDB · Daily readings since 1995

Granger Lake on Nov 7 in past years

Granger Lake water level on Nov 7 in past years
YearLevel (ft)vs today% full
2026today503.91—
99.3%
2025503.58−0.33
96.7%
2023501.29−2.62
79.9%
2022501.89−2.02
84.2%
2021505.87+1.96
100%above full pool
2020502.53−1.38
88.8%
2019503.84−0.07
98.7%
2018507.91+4.00
100%above full pool
2017504.40+0.49
100%above full pool
2016504.53+0.62
100%above full pool

Today’s level is the highest for this date since 2021.

Lake facts

Full pool (conservation pool)
504.0 ft msl
Dead pool
457.00 ft msl
Conservation capacity
51,822 acre-ft
Surface area today
4,094 acres
Highest since 1995
523.02 ftJul 27, 2007
Lowest since 1995
498.40 ftNov 14, 2011
Data since
Oct 2, 1995
Dam
Granger Damcompleted 1979
River
San Gabriel River
Operated by
US Army Corps of Engineers, Fort Worth District
Dam location
Williamson County
Gauge location
30.6930, −97.3264

Dam, river and owner from the National Inventory of Dams (USACE). Records cover Oct 2, 1995 to today (daily averages).

San Gabriel River chain

UpstreamSan Gabriel RiverDownstream
  1. Lake Georgetown784.37 ft78.7% full−6.63 ft vs full pool
  2. Granger Lake503.91 ft99.3% full−0.09 ft vs full poolYou are here

Weather on the lake

  1. Tonight57°FLowNNE 5–10 mphShowers and Thunderstorms Likely
  2. Sunday65°FHighLow 57°FNE 5–10 mphRain Showers Likely
  3. Monday68°FHighLow 54°FNE 0–5 mphSlight Chance Rain Showers
  4. Tuesday70°FHighLow 58°FCalmPartly Sunny
  5. Wednesday76°FHighLow 56°FWSW 0–5 mphSlight Chance Rain Showers then Partly Sunny
  6. Thursday74°FHighLow 49°FNNW 5–10 mphSunny
  7. Friday70°FHighLow 48°FN 5 mphSunny

Forecast: National Weather Service for the dam area (30.69, −97.33). Wind speeds are forecasts, not measurements.

Nearby lakes

Quick answers

What is the full pool level of Granger Lake?
504.0 ft above mean sea level, the top of its conservation pool. Above it, the extra water is flood storage that is later released downstream through Granger Dam.
How much does Granger Lake need to be full?
Granger Lake needs 0.09 ft more water to reach full pool (504.0 ft), or about 369 acre-ft of storage, as of Nov 7, 2026.
Is Granger Lake rising or falling?
It is steady: +0.03 ft in the last 7 days and −0.01 ft in 24 hours, to 503.91 ft on Nov 7, 2026 (Texas Water Development Board).
When was Granger Lake last full?
It was last at or above full pool (504.0 ft) on Oct 15, 2026. On Nov 7, 2026 it was 0.09 ft below.
What is the highest level in our data?
Granger Lake reached 523.02 ft on Jul 27, 2007. The lowest was 498.40 ft on Nov 14, 2011 (TWDB data since 1995; older records are not in this data set).
How much has Granger Lake changed in the last year?
In the last 12 months it ranged from 503.43 ft (Jan 20, 2026) to 510.67 ft (Jun 8, 2026), a swing of 7.24 ft.
How often is this page updated?
This page is updated every morning with the daily reading published by the Texas Water Development Board. The last reading is from Nov 7, 2026.

Where this data comes from

Daily reservoir data from the Texas Water Development Board (Granger Lake on waterdatafortexas.org). Updated every morning. Weather from the National Weather Service. Dam details from the National Inventory of Dams.

Lake Levels Daily is an independent site, not affiliated with TWDB, LCRA, USACE, USGS, NOAA, TVA or any lake operator. Check official sources before making safety decisions.