Lake Conditions
Illustrated map of Toledo Bend Reservoir

Lake levels

Nantachie Lake, LA

gauge height
1.85 ft
Condition
Low for this time of year
7-day change
-0.13 ft
30-day change
-0.51 ft
1-year change
-0.83 ft

Reading as of 2026-10-12 | the U.S. Geological Survey

Since yesterday
-0.02 ft
7-day change
-0.13 ft
30-day change
-0.51 ft
1-year change
-0.83 ft
Record high
11.26 ft

In brief

Nantachie Lake's gauge read 1.85 feet on Oct 12, 2026. That is lower than 100% of October readings since 1996.

Source: U.S. Geological Survey

Gauge height above a local reference point; not elevation above sea level.

Lake level timeline

1.51.82.12.42.7SEP 12SEP 17SEP 22SEP 27OCT 02OCT 07OCT 12HIGH 2.361.85 ft

Records and averages

Current level1.85 ft
Record high11.26 ft (2016-03-18)
Record low-0.34 ft (2023-11-29)
Average of all readings3.13 ft
Data span30 years (9,684 readings)

Level schematic

-0.82.35.58.611.7PUBLISHED HIGH 11.26 ft1.85 ftPUBLISHED LOW -0.34 ft

Frequently asked questions

Is Nantachie Lake full right now?

As of 2026-10-12, Nantachie Lake sits at 1.85 ft, which is low for this time of year. Over the past 30 days the level has fallen 0.51 ft.

What is the water level at Nantachie Lake today?

The most recent reading at Nantachie Lake is 1.85 ft (2026-10-12), sourced from the U.S. Geological Survey. Readings on this page refresh automatically as the agency publishes new data.

What is the highest Nantachie Lake has ever been?

The highest level for Nantachie Lake in our records is 11.26 ft on 2016-03-18. The lowest is -0.34 ft on 2023-11-29. Our record covers about 30 years of readings.

Is Nantachie Lake low for this time of year?

Compared with every October in our records, the current level is higher than 0% of them, which we classify as low for this time of year. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.

Why is Nantachie Lake changing right now?

Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Nantachie Lake has fallen 0.51 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.

How much has Nantachie Lake changed over the past year?

Nantachie Lake is -0.83 ft compared with this date last year (1.85 ft today). The full-history chart above covers 30 years, with a record high of 11.26 ft and a record low of -0.34 ft.

Download and cite

Quote this reading

Nantachie Lake's gauge read 1.85 feet on Oct 12, 2026. That is lower than 100% of October readings since 1996.

From the U.S. Geological Survey, updated daily. The sentence changes with every new reading, so quote it with its date.

Download the full record

nantachie-lake-la-water-level-history.csv

9,684 readings, Sep 30, 1996 to Oct 12, 2026. Daily readings. The longest gap since then is 245 days, from Jul 31, 2007. Columns: date, gauge_height_ft. 161 KB.

How to cite

MyWaterLevel, “Nantachie Lake water level, 1996 to 2026,” data from U.S. Geological Survey, https://mywaterlevel.com/lake/la/nantachie-lake/, accessed Oct 13, 2026.

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Source: the U.S. Geological Survey. All Louisiana lake levels. Readings are provisional and may be revised. About our data and methods.