Outlook

Middle estimate, with the range the level has an 8 in 10 chance of landing in. The bars share one scale: change from today.

Next week · by Nov 2784.2 ft239.03 m−0.1 ft−0.02 m from todayLikely 784.1238.98 to 784.7 ft239.16 mChance of ending 1 ft0.3 m or more higher: under 5%

In 2 weeks · by Nov 9784.2 ft239.02 m−0.1 ft−0.02 m from todayLikely 784.0238.95 to 784.7 ft239.17 mChance of ending 1 ft0.3 m or more higher: under 5%

In a month · by Nov 25784.3 ft239.05 m0.0 ft+0.01 m from todayLikely 783.6238.86 to 787.8 ft240.13 mChance of ending 1 ft0.3 m or more higher: 20%

Rises are harder to call. Heavy rain in the watershed can push the lake above these ranges within days.

Rain, past 7 days: 0.1 in2 mm watershed average
Rain forecast, next 7 days: 0.6 in15 mm normal 0.8 in20 mm

Statistical estimate, not safety, boating, or water-quality advice. For ramps, closures and advisories, check the lake operator.

Map

Map of Lake Georgetown with the dam, level gauge and 3 public boat ramps.

Dam
Level gauge
Public boat ramp

Ramp locations from Texas Parks and Wildlife. Whether a ramp is open depends on the lake level; check the operator.

Level and outlook

FeetMeters above sea level

Measured
Middle estimate
8 in 10 range
Full pool

Show outlook as a table

Date	Low end	Middle	High end
Nov 2	784.1238.98	784.2239.03	784.7239.16
Nov 9	784.0238.95	784.2239.02	784.7239.17
Nov 25	783.6238.86	784.3239.05	787.8240.13

How well this outlook has done here

We tested the 2-week outlook on past years at this lake, as if made once a week with only what was known that day.

On average it was off by: 0.74 ft0.23 m Assuming the level stays the same was off by 1.14 ft0.35 m
Actual level inside our range: 83% of 432 tests; the range is built to catch 8 in 10
When we said a rise was possible (20–40%): 16% of those 37 times it ended 1 ft0.3 m or more higher

The rise chance uses the same threshold for every lake: 1 ft (0.3048 m).

Connected lakes

Water from upstream lakes flows into this one; water released here flows on downstream.

Downstream

Granger Lake503.8 ft153.55 m · 98%

Nearby lakes

Closest lakes in a straight line, with today's level.

About Lake Georgetown

Lake Georgetown is a U.S. Army Corps of Engineers reservoir on the North Fork of the San Gabriel River, about 3 miles west of Georgetown. North San Gabriel Dam was completed around 1980 for flood control, and the lake also supplies drinking water to Georgetown and Round Rock. Granger Lake is downstream on the San Gabriel.

More: Wikipedia · Texas Water Development Board

Full pool (conservation): 791.0 ft241.10 m
Highest level since 1995: 825.9 ft251.74 m, Jul 2007
Lowest level since 1995: 765.6 ft233.34 m, Oct 2011
Surface area at normal pool: 1,310 acres530 ha
Conservation storage: 38,005 acre-feet47 million m³
Dam: North San Gabriel Dam, 1980
River or creek: North Fork San Gabriel River
County: Williamson
Owner: USACE - Fort Worth District

Elevations are feetmeters above sea level (NGVD29).

Common questions

Is Lake Georgetown full right now?

On Oct 26 it was 784.3 ft, 6.7 ft below full pool (791.0 ft), holding 79% of its conservation storage.On Oct 26 it was 239.05 m, 2.05 m below full pool (241.10 m), holding 79% of its conservation storage.

Is Lake Georgetown going up or down?

The middle estimate for Nov 9 is about steady, with an 8 in 10 chance it ends between 784.0 ft and 784.7 ft. The chance it ends 1 ft or more higher than today is under 5%. Heavy rain can change that quickly.The middle estimate for Nov 9 is about steady, with an 8 in 10 chance it ends between 238.95 m and 239.17 m. The chance it ends 0.3 m or more higher than today is under 5%. Heavy rain can change that quickly.

Where does this data come from?

Daily levels come from the Texas Water Development Board and lake operators. The outlook is our own statistical model, using recent levels and forecast rain over the watershed.