Lake levels › Tennessee

Great Falls Lake water level today

Lower than usual for this time of year

793.48ft

feet above sea level ·

vs normal for Oct 10−2.1 ft
24 hours−0.10 ft
7 days−1.0 ft
30 days−4.5 ft
vs a year ago−1.8 ft

Is Great Falls Lake low right now?

Great Falls Lake was at 793.48 ft on October 10, 2026. That is 2.07 ft below the typical level for October 10 — lower than in 9 of 10 past years. Over the past week the lake has been falling about 0.14 ft a day.

Last 12 monthsDaily level Normal range (10–90% of past years)
785790795799804NovDecJanFebMarAprMayJunJulAugSepOct

Great Falls Lake on Oct 10 in past years

2025796.4−2.9
2024797.7−4.2
2023798.5−5.0
2022796.5−3.0
2021799.1−5.6
2020796.9−3.4

Level on the same date each year, and how today compares.

Daily levels, last two weeks

DateLevel (ft)Change
Oct 10793.49−0.09
Oct 9793.58−0.17
Oct 8793.75−0.17
Oct 7793.92−0.16
Oct 6794.08−0.16
Oct 5794.24−0.14
Oct 4794.38−0.10
Oct 3794.48±0.00
Oct 2794.48−0.17
Oct 1794.65−0.19
Sep 30794.84−0.18
Sep 29795.02−0.17
Sep 28795.19−0.18
Sep 27795.37−0.17

Daily means of the operator's readings (midnight to midnight, local time).

About Great Falls Lake

10-year range
785.4 ft (November 28, 2016) to 805.8 ft (February 24, 2019)
Operated by
U.S. Army Corps of Engineers
Data
U.S. Army Corps of Engineers — LRN district, GGRT1-GREAT_FALLS
Datum
NGVD29

Lakes near Great Falls Lake

Questions

Is Great Falls Lake low right now?

Great Falls Lake was at 793.48 ft on October 10, 2026. That is 2.07 ft below the typical level for October 10 — lower than in 9 of 10 past years. Over the past week the lake has been falling about 0.14 ft a day.

How often is the Great Falls Lake level updated?

The operator reports every 15 minutes to an hour. This page refreshes several times a day; the time of the latest reading is shown next to the level.

Where does this data come from?

U.S. Army Corps of Engineers (LRN district, GGRT1-GREAT_FALLS). Readings are provisional and can be revised.