Lake Conditions
Illustrated map of Allegheny Reservoir

Lake levels

Lake Arthur, PA

water level
1190.09 ft
Condition
Steady
7-day change
-0.10 ft
30-day change
-0.22 ft
Since yesterday
+0.00 ft

Reading as of 2026-10-06 | the U.S. Geological Survey

Since yesterday
+0.00 ft
7-day change
-0.10 ft
30-day change
-0.22 ft
Average
1190.25 ft

In brief

Lake Arthur stood at 1,190.09 feet on Oct 6, 2026.

Source: U.S. Geological Survey

Last 30 days

1189.61190.01190.31190.61190.9SEP 06SEP 11SEP 16SEP 21SEP 26OCT 01OCT 06HIGH 1190.47LOW 1190.091190.09 ftLAST READING

Last 169 days

1189.71190.11190.41190.71191.0APR 21MAY 19JUN 16JUL 14AUG 11SEP 08OCT 06HIGH 1190.77LOW 1189.981190.09 ftLAST READING

Level and data on file

Current level1190.09 ft
Data span169 days, since 2026-04-21 (169 readings)

Level schematic

1,190.011,190.051,190.091,190.131,190.171,190.09 ft

Frequently asked questions

Is Lake Arthur full right now?

As of 2026-10-06, Lake Arthur sits at 1190.09 ft. Over the past 30 days the level has fallen 0.22 ft.

What is the water level at Lake Arthur today?

The most recent reading at Lake Arthur is 1190.09 ft (2026-10-06), sourced from the U.S. Geological Survey. Readings on this page refresh automatically as the agency publishes new data.

How much has Lake Arthur moved recently?

Readings for Lake Arthur run from 1189.98 ft to 1190.77 ft over the 169 days on file, which begin 2026-04-21. 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 Lake Arthur 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. Lake Arthur has fallen 0.22 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.

How much has Lake Arthur changed over the past year?

Year-over-year comparison is not available for Lake Arthur yet. The published series on this page covers 169 days, from 1189.98 ft to 1190.77 ft. That is not long enough to describe the lake's historical range.

Download and cite

Quote this reading

Lake Arthur stood at 1,190.09 feet on Oct 6, 2026.

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

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

169 readings, Apr 21, 2026 to Oct 6, 2026. Daily readings. Columns: date, water_level_ft. 3 KB.

How to cite

MyWaterLevel, “Lake Arthur water level, 2026,” data from U.S. Geological Survey, https://mywaterlevel.com/lake/pa/lake-arthur/, accessed Oct 13, 2026.

Embed this lake level on your site

A small card with the current level and the last 30 days. It updates every day, costs nothing, and needs no account. Paste this where you want it to appear:

Preview the card

Need several lakes, your own branding, or a lake we do not list? Write to [email protected].

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