Blue Marsh Lake near Bernville water level

Name: Blue Marsh Lake near Bernville water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

Lake, Blue Marsh Lake, Pennsylvania, United States

Directions

Normal for mid-October

Surface elevation

287.91ft Down 0.22 ft over the last 24 hours

Measured Oct 20, 2026, 02:00 PM EDT (38 min ago)

History

What this means

The lake level at Blue Marsh Lake near Bernville reads 287.91 ft, about where it usually sits at this time of year.

The median for mid-October is 287.48 ft, based on 7 years of readings, so the lake level is 0.43 ft above typical. On the same day last year the reading was 286.14 ft, a difference of +1.77 ft.

It is still going down, by 0.22 ft over the past 24 hours. The 30-day range is 287.91 ft – 296.15 ft.

Lakes and reservoirs often sit lower in fall after a summer of evaporation and use, and recover with winter rain and spring snowmelt.

Compared with 7 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 287.48 ft0.43 ft above the median for this date
Normal for this date: 285.84 ft – 289.99 ft8 years in 10 fall in this range (7 years of records)
Same day last year: 286.14 ft+1.77 ft
Lowest and highest in 30 days: 287.91 ft – 296.15 ft
Lowest and highest in 12 months: 284.47 ft – 291.39 ft

Boating and fishing at Blue Marsh Lake near Bernville

A lake in its usual range is what most ramps, docks and swimming areas are built for.

Conditions at the shore change with the level, so check with the agency that runs the lake before a trip.

Weather at the gauge

No rain in the last 3 days.

20 Tue 69° 43° – Wind 11 mph

21 Wed 65° 38° – Wind 10 mph

22 Thu 65° 39° – Wind 13 mph

23 Fri 59° 42° – Wind 7 mph

24 Sat 59° 38° – Wind 6 mph

25 Sun 63° 40° – Wind 7 mph

26 Mon 66° 44° – Wind 7 mph

Forecast: Open-Meteo

Sunrise 07:21 AM Sunset 06:18 PM Daylight 10 hr, 57 min Waxing gibbous 70%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Tulpehocken Cr at Blue Marsh Damsite near ReadingRiver gauge, Tulpehocken Cr	254 cfs	Normal	−59.0 cfs	0.7 mi
Tulpehocken Creek near ReadingRiver gauge, Tulpehocken Creek	1.78 ft	Below flood stage	−0.18 ft	2.9 mi
Schuylkill River at ReadingRiver gauge, Schuylkill River	3.61 ft	Below flood stage	−0.21 ft	5.9 mi
Maiden Creek at BerkleyRiver gauge, Maiden Creek	167 cfs	Normal	−8.0 cfs	6.0 mi
Tulpehocken Creek near BernvilleRiver gauge, Tulpehocken Creek	69.3 cfs	Normal	−12.3 cfs	8 mi
Schuylkill River at BerneRiver gauge, Schuylkill River	5.16 ft	Below flood stage	−0.02 ft	10 mi
Maiden Creek near VirginvilleRiver gauge, Maiden Creek	85.5 cfs	Normal	−8.7 cfs	13 mi
Manatawny Creek near SpangsvilleRiver gauge, Manatawny Creek	27.8 cfs	Low	−1.1 cfs	16 mi

Questions and answers

Is Blue Marsh Lake near Bernville higher than last year?

Yes, it is 1.77 ft higher than on the same day last year, when the reading was 286.14 ft.

What is a normal level for Blue Marsh Lake near Bernville in mid-October?

The median for mid-October is 287.48 ft. In 8 years out of 10 the reading falls between 285.84 ft and 289.99 ft, based on 7 years of records.

Is Blue Marsh Lake near Bernville really 287.91 ft deep?

No. 287.91 ft is the height of the water surface above sea level (or the agency's vertical datum), not the depth of the water.

What is the water level of Blue Marsh Lake near Bernville today?

On Oct 20, 2026, 02:00 PM EDT, the surface elevation was 287.91 ft. Down 0.22 ft over the last 24 hours.

Is Blue Marsh Lake near Bernville rising or falling?

Down 0.22 ft over the last 24 hours. Down 2.63 ft over the last 7 days.

Is the level of Blue Marsh Lake near Bernville normal?

Normal for mid-October. Compared with 7 years of daily readings for this time of year.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:01470870 (Agency page)
Coordinates: 40.37926, -76.03272 (WGS84)
Vertical datum: local
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Surface elevation	287.91 ft	2026-10-20 18:00	Provisional

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How to cite

U.S. Geological Survey: Blue Marsh Lake near Bernville (usgs:01470870). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/pennsylvania/blue-marsh-lake-near-bernville

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer