Skip to content
lakeglance

PennsylvaniaReservoir, 3,075 acres, Butler County

Lake Arthur water level

Lake Arthur, Pennsylvania
Photo: Designism, CC0

Current level

1,190.09ft above sea level

Reading from Oct 6, 2026

Past 24 hours
-0.01ft
Past 7 days
-0.10ft
Past 30 days
-ft
Trend
Falling

Lake Arthur was at 1,190.09 ft on October 6, falling 0.10 ft over the past week.

Last 30 days

1190.01190.31190.5Sep 21Sep 28Oct 5

Recent daily readings

Lake Arthur daily mean water level, newest first
DateLevel (ft above sea level)Change
Oct 5, 20261,190.10-0.03
Oct 4, 20261,190.13-0.02
Oct 3, 20261,190.150.00
Oct 2, 20261,190.15-0.02
Oct 1, 20261,190.17-0.01
Sep 30, 20261,190.18-0.01
Sep 29, 20261,190.19-0.02
Sep 28, 20261,190.21-0.02
Sep 27, 20261,190.23-0.02
Sep 26, 20261,190.25-0.04
Sep 25, 20261,190.29-0.04
Sep 24, 20261,190.33-0.04
Sep 23, 20261,190.37-0.03
Sep 22, 20261,190.40+0.06

Reading these numbers

Readings are reservoir surface elevations in feet, as published by the U.S. Geological Survey. Compare them with ramp and dock elevations from the lake operator to judge whether a launch is usable.

On a reservoir, a few feet of drop changes the shoreline more than you would think. Low water exposes stumps, sandbars and old roadbeds that are normally well under the hull, and some ramps end before the water does.

High water brings its own problems: floating debris after storms, flooded docks and courtesy piers, and no-wake rules near flooded campgrounds. A quick look at the trend before you hitch up saves a wasted trip.

The gauge is about 3 miles from the center of the lake and is listed by USGS as Lake Arthur at Moraine State Park, PA. Wind can pile water up at one end of a big lake for a few hours, so short spikes on a windy day are normal.

Lake Arthur water level questions

What is the water level at Lake Arthur today?

Lake Arthur was at 1,190.09 ft on October 6, falling 0.10 ft over the past week.

Is Lake Arthur rising or falling?

Over the last seven days the level has fallen (-0.10 ft).

Where does the Lake Arthur water level data come from?

From the U.S. Geological Survey, gauge 03106280 (Lake Arthur at Moraine State Park, PA). USGS publishes provisional readings every 15 to 60 minutes; they can be revised later after quality checks.

How often is this page updated?

The page itself is rebuilt every day with the latest daily values, and the current reading refreshes straight from the USGS each time you open it.

Nearby lakes

If Arthur is blown out, these are the closest alternatives. Tap through for their water levels.