Lake Conditions
Illustrated map of Allegheny Reservoir

Lake levels

Struble Lake, PA

water level
617.27 ft
Condition
High for this time of year
7-day change
+0.34 ft
30-day change
+0.37 ft
1-year change
+0.46 ft

Reading as of 2026-10-12 | the U.S. Geological Survey

Since yesterday
+0.20 ft
7-day change
+0.34 ft
30-day change
+0.37 ft
1-year change
+0.46 ft
Record high
617.85 ft

In brief

Struble Lake stood at 617.27 feet on Oct 12, 2026. That is higher than 100% of October readings since 2018.

Source: U.S. Geological Survey

Lake level timeline

616.4616.7617.1617.4617.7SEP 12SEP 17SEP 22SEP 27OCT 02OCT 07OCT 12LOW 616.85617.27 ft

Records and averages

Current level617.27 ft
Record high617.85 ft (2018-11-03)
Record low616.10 ft (2021-11-10)
Average of all readings616.95 ft
Data span8 years (2,748 readings)

Level schematic

616.02616.50616.98617.45617.93PUBLISHED HIGH 617.85 ft617.27 ftPUBLISHED LOW 616.10 ft

Frequently asked questions

Is Struble Lake full right now?

As of 2026-10-12, Struble Lake sits at 617.27 ft, which is high for this time of year. Over the past 30 days the level has risen 0.37 ft.

What is the water level at Struble Lake today?

The most recent reading at Struble Lake is 617.27 ft (2026-10-12), sourced from the U.S. Geological Survey. Readings on this page refresh automatically as the agency publishes new data.

What is the highest Struble Lake has ever been?

The highest level for Struble Lake in our records is 617.85 ft on 2018-11-03. The lowest is 616.10 ft on 2021-11-10. Our record covers about 8 years of readings.

Is Struble Lake low for this time of year?

Compared with every October in our records, the current level is higher than 100% of them, which we classify as high for this time of year. Seasonal comparison matters more than the raw number, because most reservoirs draw down predictably through late summer and refill over winter and spring.

Why is Struble Lake 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. Struble Lake has risen 0.37 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.

How much has Struble Lake changed over the past year?

Struble Lake is +0.46 ft compared with this date last year (617.27 ft today). The full-history chart above covers 8 years, with a record high of 617.85 ft and a record low of 616.10 ft.

Download and cite

Quote this reading

Struble Lake stood at 617.27 feet on Oct 12, 2026. That is higher than 100% of October readings since 2018.

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

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

2,748 readings, Oct 1, 2018 to Oct 12, 2026. Daily from 2019, less frequent before. The longest gap since then is 18 days, from Feb 11, 2026. Columns: date, water_level_ft. 51 KB.

How to cite

MyWaterLevel, “Struble Lake water level, 2018 to 2026,” data from U.S. Geological Survey, https://mywaterlevel.com/lake/pa/struble-lake/, accessed Oct 13, 2026.

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