Falcon Lake lake and shoreline

Falcon Lake Water Level

Officially Falcon Lake (Rio Grande)

Texas

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Falcon Lake

Falcon Lake is currently 39.8 feet below full pool, with a water-surface elevation of 261.2 feet.

261.16 ft · Updated 7 hours ago · International Boundary and Water Commission

Current level

261.16ft

−39.84 ft vs full pool

Low

Vs full pool

Since last reading

Up 0.16 ft

Previous readingOct 6260.84 ft

7-day change

Up 0.89 ft

7-day trend: Rising

8 daily readings in the last 7 days

30-day change

Down 0.71 ft

25 daily readings in the last 30 days

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Water Level History

Current
261.16 ft
24h
+0.16 ft
7d
+0.89 ft
30d
-0.71 ft

Elevation (ft) NGVD29 · MSL

Reference line is designed full pool.

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Lake Level Context

Level remains below the full pool

Falcon Lake is currently 261.16 ft, 39.84 ft below its full pool. The lake has risen 0.89 ft over the past 7 days and fallen 0.71 ft over the past 30 days.

Falcon Lake Level Details

Reference elevations, recent daily readings, data sources, and answers to common questions.

Conditions & Reference

Level status

39.84 ft below full pool

Current level
261.16 ft
Full pool
301 ft
DatumElevation referenced to National Geodetic Vertical Datum of 1929.
NGVD29
Elevation reference
MSL
Source
International Boundary and Water Commission

Reference levels

  • Full pool301 ft
  • Flood stage307 ft

Surrounding county drought

Moderate Drought

100% of surrounding county in official drought (D1–D4).

Severity

NoneExtreme
Trend
Improving

Surrounding county drought

Starr County, TX

Moderate Drought

Moderate Drought. The largest share of Starr County, TX is in Moderate Drought (D1), an official USDM drought category. These figures describe the surrounding county from the lake location, not the lake itself.. Trend: Improving compared with last week. Official drought (D1–D4) yes

Severity

NoneExtreme

Weekly trend

Improving

Compared with last week

Official drought (D1–D4)

Yes

100% of the surrounding county is in official drought categories (D1–D4). Dominant category remains Moderate Drought.

Typical county impacts (USDM guidance)

  • Streamflows in the surrounding county may run below normal
  • Soils and vegetation can dry between rain events
  • Water managers may begin to watch supply more closely

U.S. Drought Monitor · map date Oct 6, 2026. Updated weekly. Official drought means U.S. Drought Monitor categories D1–D4 (Moderate through Exceptional). Abnormally Dry (D0) is not counted as official drought. droughtmonitor.unl.eduView drought map for Starr County, TX

Daily level summary

DateLevelChange
Oct 7, 2026261+0.16
Oct 6, 2026260.84+0.18
Oct 5, 2026260.66+0.13
Oct 4, 2026260.53+0.13
Oct 3, 2026260.4+0.13
Oct 2, 2026260.27+0.14
Oct 1, 2026260.13+0.02

Common questions about Falcon Lake’s water level

  • The current water level at Falcon Lake is 261.16 ft (updated 7 hours ago). You can track the Falcon Lake lake level on the interactive chart and daily history above.

  • Full pool for Falcon Lake is 301 ft — the normal conservation target elevation when the reservoir is at its designed summer or operating pool.

  • The current 7-day trend for the Falcon Lake lake level is rising — rising about 0.89 ft over the past week. See the history chart above for the full picture.

  • Based on the latest gauge reading, Falcon Lake is currently 39.84 ft below full pool.

Lake level glossary

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

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