Truman Lake lake and shoreline

Truman Lake Water Level

Officially Harry S. Truman Reservoir

Missouri

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Truman Lake

Truman Lake is currently 0.7 feet below full pool, with a water-surface elevation of 705.3 feet.

705.26 ft · Updated 4 hours ago · NOAA / National Weather Service — Advanced Hydrologic Prediction Service

Current level

705.26ft

−0.74 ft vs full pool

Normal

Vs full pool

Since last reading

Down 0.03 ft

Previous readingSep 23705.32 ft

7-day change

Down 0.03 ft

7-day trend: Falling

8 daily readings in the last 7 days

30-day change

Down 0.39 ft

31 daily readings in the last 30 days

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Water Level History

Current
705.26 ft
24h
-0.03 ft
7d
-0.03 ft
30d
-0.39 ft

Elevation (ft) NGVD29 · MSL

Reference line is designed full pool.

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Lake Level Context

Level remains below the full pool

Truman Lake is currently 705.26 ft, 0.74 ft below its full pool. The lake has fallen 0.03 ft over the past 7 days and 0.39 ft over the past 30 days.

Truman Lake Level Details

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

Conditions & Reference

Level status

0.74 ft below full pool

Current level
705.26 ft
Full pool
706 ft
DatumElevation referenced to National Geodetic Vertical Datum of 1929.
NGVD29
Elevation reference
MSL
Source
NOAA / NWS

Reference levels

  • Full pool706 ft
  • Flood stage740 ft

Watershed drought

Moderate Drought

52.2% of watershed in official drought (D1+).

Severity

NoneExtreme
Trend
Stable

Watershed drought conditions

Benton County, MO

Moderate Drought

Moderate Drought. Moderate drought is affecting the watershed.. Trend: Stable compared with last week. Official drought yes

Severity

NoneExtreme

Weekly trend

Stable

Compared with last week

Official drought

Yes

52.2% of the watershed is currently classified as official drought (D1+).

Expected impacts

  • Stream inflows may run below normal
  • Lake levels can decline faster between rain events
  • Vegetation stress may increase over time

U.S. Drought Monitor · map date Sep 22, 2026. Updated weekly. droughtmonitor.unl.eduView drought map for Benton County, MO

Daily level summary

DateLevelChange
Sep 24, 2026705.29-0.03
Sep 23, 2026705.32-0.03
Sep 22, 2026705.35-0.01
Sep 21, 2026705.36-0.01
Sep 20, 2026705.37+0.04
Sep 19, 2026705.33+0.02
Sep 18, 2026705.31-0.01

Common questions about Truman Lake’s water level

  • The current water level at Truman Lake is 705.26 ft (updated 4 hours ago). You can track the Truman Lake lake level on the interactive chart and daily history above.

  • Full pool for Truman Lake is 706 ft — the normal conservation target elevation when the reservoir is at its designed summer or operating pool.

  • The current 7-day trend for the Truman Lake lake level is falling — falling about 0.03 ft over the past week. See the history chart above for the full picture.

  • Based on the latest gauge reading, Truman Lake is currently 0.74 ft below full pool.

Lake level glossary

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

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