Lake Conditions
Illustrated map of Allegheny Reservoir

Lake levels

Stillwater Lake, PA

water level
1574.18 ft
Condition
Falling
7-day change
-3.79 ft
Above full pool
2.18 ft
30-day change
+1.53 ft

Reading as of 2026-10-13 | the U.S. Army Corps of Engineers

Since yesterday
-0.01 ft
7-day change
-3.79 ft
30-day change
+1.53 ft
Above full pool
2.18 ft
Average
1573.45 ft

In brief

Stillwater Lake stood at 1,574.18 feet on Oct 13, 2026.

Source: U.S. Army Corps of Engineers

Last 30 days

1571.21573.11575.01576.91578.9SEP 13SEP 18SEP 23SEP 28OCT 03OCT 08OCT 13FULL POOL 1572.00 ftHIGH 1578.01LOW 1572.651574.18 ftLAST READING

Last 130 days

1571.21573.11575.01576.91578.9JUN 06JUN 27JUL 19AUG 09AUG 31SEP 21OCT 13FULL POOL 1572.00 ftHIGH 1578.01LOW 1572.481574.18 ftLAST READING

Level and data on file

Current level1574.18 ft
Full pool (conservation) 1572.00 ft
Flood pool 1621.00 ft
Data span130 days, since 2026-06-06 (127 readings)

Level schematic

1,571.861,572.831,573.801,574.771,575.74FULL POOL 1,572.00 ft1,574.18 ft2.18 ftabove full pool

Frequently asked questions

Is Stillwater Lake full right now?

As of 2026-10-13, Stillwater Lake sits at 1574.18 ft. That is 2.18 ft above full pool of 1572.00 ft. It is still 46.8 ft below the flood pool of 1621.00 ft. Over the past 30 days the level has risen 1.53 ft.

What is the water level at Stillwater Lake today?

The most recent reading at Stillwater Lake is 1574.18 ft (2026-10-13), sourced from the U.S. Army Corps of Engineers. Readings on this page refresh automatically as the agency publishes new data.

How much has Stillwater Lake moved recently?

Readings for Stillwater Lake run from 1572.48 ft to 1578.01 ft over the 130 days on file, which begin 2026-06-06. That window is shorter than a year, so neither end is a record for the lake. A lake's range includes a full seasonal cycle, and this gauge has not yet published one.

Why is Stillwater Lake low 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. Stillwater Lake has risen 1.53 ft over the past 30 days. For the operational reason on any given week, check the U.S. Army Corps of Engineers directly.

How much has Stillwater Lake changed over the past year?

Year-over-year comparison is not available for Stillwater Lake yet. The published series on this page covers 130 days, from 1572.48 ft to 1578.01 ft. That is not long enough to describe the lake's historical range.

Download and cite

Quote this reading

Stillwater Lake stood at 1,574.18 feet on Oct 13, 2026.

From the U.S. Army Corps of Engineers, updated daily. The sentence changes with every new reading, so quote it with its date.

Download the full record

stillwater-lake-pa-water-level-history.csv

127 readings, Jun 6, 2026 to Oct 13, 2026. Daily readings. Columns: date, water_level_ft. 3 KB.

How to cite

MyWaterLevel, “Stillwater Lake water level, 2026,” data from U.S. Army Corps of Engineers, https://mywaterlevel.com/lake/pa/stillwater-lake/, accessed Oct 13, 2026.

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Source: the U.S. Army Corps of Engineers. All Pennsylvania lake levels. Readings are provisional and may be revised. About our data and methods.