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lakeglance

PennsylvaniaReservoir, 1,150 acres

Blue Marsh Lake water level

Blue Marsh Lake, Pennsylvania
Photo: BerksCountyUpdate, CC BY-SA 4.0

Current level

286.44ft above sea level

Reading from Oct 26, 2026

Below normal for October

Past 24 hours
-0.17ft
Past 7 days
-1.73ft
Past 30 days
-3.68ft
vs typical October
-2.12ft

Blue Marsh Lake was at 286.44 ft on October 26, falling 1.73 ft over the past week. That is below normal for October: the typical October level is 288.56 ft, so the lake is 2.12 ft below its usual mark.

Last 30 days

286288290292typicalSep 25Oct 10Oct 25

Shaded band shows the lowest and highest October monthly averages on record. Dashed line is the typical October level.

Typical level through the year

Each bar spans the range of monthly averages on record for that month. The line marks the median. The orange dot is where the lake sits now.

285290JFMAMJJASOND

Recent daily readings

Blue Marsh Lake daily mean water level, newest first
DateLevel (ft above sea level)Change
Oct 25, 2026286.61-0.28
Oct 24, 2026286.89-0.28
Oct 23, 2026287.17-0.25
Oct 22, 2026287.42-0.24
Oct 21, 2026287.66-0.25
Oct 20, 2026287.91-0.26
Oct 19, 2026288.17-0.46
Oct 18, 2026288.63-0.46
Oct 17, 2026289.09-0.37
Oct 16, 2026289.46-0.43
Oct 15, 2026289.89-0.12
Oct 14, 2026290.01-0.53
Oct 13, 2026290.54-0.85
Oct 12, 2026291.39+1.05

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 listed by USGS as Blue Marsh Lake near Bernville, 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.

Blue Marsh Lake water level questions

What is the water level at Blue Marsh Lake today?

Blue Marsh Lake was at 286.44 ft on October 26, falling 1.73 ft over the past week. That is below normal for October: the typical October level is 288.56 ft, so the lake is 2.12 ft below its usual mark.

Is Blue Marsh Lake high or low right now?

Compared with the long-term record for October, the lake is below normal. The October monthly average has ranged from 284.62 to 289.13 ft, with a typical value of 288.56 ft.

Is Blue Marsh Lake rising or falling?

Over the last seven days the level has fallen (-1.73 ft), and it is -3.68 ft compared with 30 days ago.

Where does the Blue Marsh Lake water level data come from?

From the U.S. Geological Survey, gauge 01470870 (Blue Marsh Lake near Bernville, 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 Blue Marsh is blown out, these are the closest alternatives. Tap through for their water levels.