Lake Houston lake and shoreline

Lake Houston Water Level

Texas

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Active alerts and advisories

Conditions that may affect safety or access. Always verify with official sources before heading out.

Lake-specific pages: Weather · Lake level.

Alert details

Lake Houston is currently 1.5 feet below full pool, with a water-surface elevation of 42.5 feet.

42.55 ft · Updated 13 hours ago · Texas Water Development Board

Current level

42.55ft

−1.45 ft vs full pool

Normal

Vs full pool

Since last reading

Down 0.01 ft

Previous readingSep 942.56 ft

7-day change

Down 0.05 ft

7-day trend: Falling

5 daily readings in the last 7 days

30-day change

Down 0.05 ft

5 daily readings in the last 30 days

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Water Level History

Elevation (ft) NGVD29 · MSL

43 ft43 ft44 ftFULL POOL 44.00 ftSep 7Sep 11

Level status

1.45 ft below full pool

Current level
42.55 ft
Full pool
44 ft
DatumElevation referenced to National Geodetic Vertical Datum of 1929.
NGVD29
Elevation reference
MSL
Source
Texas Water Development Board

Reference levels

  • Full pool44 ft

Watershed drought

Abnormally Dry

Abnormally dry (D0), not official drought.

Severity

NoneExtreme
Trend
Stable

Watershed drought conditions

Harris County, TX

Abnormally Dry

Abnormally Dry. The surrounding county is abnormally dry, which is not official drought.. Trend: Stable compared with last week. Official drought no

Severity

NoneExtreme

Weekly trend

Stable

Compared with last week

Official drought

No

Current conditions are classified as Abnormally Dry (D0), which is not considered official drought.

U.S. Drought Monitor · map date Sep 8, 2026. Updated weekly. droughtmonitor.unl.eduView drought map for Harris County, TX

Daily level summary

  • Sep 10, 2026

    42.55 ft

    -0.01 ft

  • Sep 9, 2026

    42.56 ft

    -0.03 ft

  • Sep 8, 2026

    42.59 ft

    -0.04 ft

  • Sep 7, 2026

    42.63 ft

    +0.03 ft

  • Sep 6, 2026

    42.6 ft

    —

Common questions about Lake Houston’s water level

  • The current water level at Lake Houston is 42.55 ft (updated 13 hours ago). You can track the Lake Houston lake level on the interactive chart and daily history above.

  • Full pool for Lake Houston is 44 ft — the normal conservation target elevation when the reservoir is at its designed summer or operating pool.

  • The current 7-day trend for the Lake Houston lake level is falling — falling about 0.05 ft over the past week. See the history chart above for the full picture.

  • Based on the latest gauge reading, Lake Houston is currently 1.45 ft below full pool.

Lake level glossary

Definitions for pool targets, datums, and how elevation readings are labeled.

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