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 2620.6 ft189.16 m−0.1 ft−0.04 m from todayLikely 620.5189.12 to 620.8 ft189.21 mChance of ending 1 ft0.3 m or more higher: under 5%

In 2 weeks · by Nov 9620.5 ft189.13 m−0.2 ft−0.06 m from todayLikely 620.3189.07 to 620.9 ft189.24 mChance of ending 1 ft0.3 m or more higher: under 5%

In a month · by Nov 25620.4 ft189.09 m−0.4 ft−0.11 m from todayLikely 619.9188.94 to 622.5 ft189.73 mChance of ending 1 ft0.3 m or more higher: 10%

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

Rain, past 7 days: 0.0 in1 mm watershed average
Rain forecast, next 7 days: 0.6 in17 mm normal 0.7 in18 mm

Statistical estimate, not safety, boating, or water-quality advice. For ramps, closures and advisories, check the U.S. Army Corps of Engineers.

Map

Map of Stillhouse Hollow Lake with the dam, level gauge and 5 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	620.5189.12	620.6189.16	620.8189.21
Nov 9	620.3189.07	620.5189.13	620.9189.24
Nov 25	619.9188.94	620.4189.09	622.5189.73

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: 0.67 ft0.20 m Assuming the level stays the same was off by 0.92 ft0.28 m
Actual level inside our range: 74% of 430 tests; the range is built to catch 8 in 10
When we said a rise was possible (20–40%): 11% of those 27 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).

Nearby lakes

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

About Stillhouse Hollow Lake

Stillhouse Hollow Lake, about 5 miles southwest of Belton, holds back the Lampasas River and is run by the U.S. Army Corps of Engineers. It was impounded in 1968 for flood control and water supply. In the 2023 drought it reached its lowest recorded level, about 602 ft, roughly 20 feet below normal pool.

More: Wikipedia · Texas Water Development Board · U.S. Army Corps of Engineers

Full pool (conservation): 622.0 ft189.59 m
Highest level since 1988: 664.0 ft202.38 m, Jul 2007
Lowest level since 1988: 600.0 ft182.88 m, Sep 1999
Surface area at normal pool: 6,430 acres2,602 ha
Conservation storage: 229,796 acre-feet283 million m³
Dam: Stillhouse Hollow Dam, 1968
River or creek: Lampasas River
County: Bell
Owner: USACE - Fort Worth District

Elevations are feetmeters above sea level (NGVD29).

Common questions

Is Stillhouse Hollow Lake full right now?

On Oct 26 it was 620.7 ft, 1.3 ft below full pool (622.0 ft), holding 97% of its conservation storage.On Oct 26 it was 189.20 m, 0.39 m below full pool (189.59 m), holding 97% of its conservation storage.

Is Stillhouse Hollow Lake going up or down?

The middle estimate for Nov 9 is down about 0.2 ft, with an 8 in 10 chance it ends between 620.3 ft and 620.9 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 down about 0.06 m, with an 8 in 10 chance it ends between 189.07 m and 189.24 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.