Lake Conditions
Illustrated map of Allegheny Reservoir

Lake levels

Foster Joseph Sayers Lake, PA

water level
630.22 ft
Condition
About average for this time of year
7-day change
+0.15 ft
30-day change
+0.16 ft
1-year change
-0.66 ft

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

Since yesterday
+0.11 ft
7-day change
+0.15 ft
30-day change
+0.16 ft
1-year change
-0.66 ft
Record high
647.59 ft

In brief

Foster Joseph Sayers Lake stood at 630.22 feet on Oct 12, 2026. That is higher than 50% of October readings since 2008.

Source: U.S. Geological Survey

Lake level timeline

629.6629.9630.2630.5630.9SEP 12SEP 17SEP 22SEP 27OCT 02OCT 07OCT 12HIGH 630.40LOW 630.02630.22 ft

Records and averages

Current level630.22 ft
Record high647.59 ft (2018-09-13)
Record low608.26 ft (2012-02-24)
Average of all readings627.26 ft
Data span18 years (6,561 readings)

Level schematic

606.7617.3627.9638.5649.2PUBLISHED HIGH 647.59 ft630.22 ftPUBLISHED LOW 608.26 ft

Frequently asked questions

Is Foster Joseph Sayers Lake full right now?

As of 2026-10-12, Foster Joseph Sayers Lake sits at 630.22 ft, which is about average for this time of year. Over the past 30 days the level has risen 0.16 ft.

What is the water level at Foster Joseph Sayers Lake today?

The most recent reading at Foster Joseph Sayers Lake is 630.22 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 Foster Joseph Sayers Lake has ever been?

The highest level for Foster Joseph Sayers Lake in our records is 647.59 ft on 2018-09-13. The lowest is 608.26 ft on 2012-02-24. Our record covers about 18 years of readings.

Is Foster Joseph Sayers Lake low for this time of year?

Compared with every October in our records, the current level is higher than 50% of them, which we classify as about average 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 Foster Joseph Sayers 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. Foster Joseph Sayers Lake has risen 0.16 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.

How much has Foster Joseph Sayers Lake changed over the past year?

Foster Joseph Sayers Lake is -0.66 ft compared with this date last year (630.22 ft today). The full-history chart above covers 18 years, with a record high of 647.59 ft and a record low of 608.26 ft.

Download and cite

Quote this reading

Foster Joseph Sayers Lake stood at 630.22 feet on Oct 12, 2026. That is higher than 50% of October readings since 2008.

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

foster-joseph-sayers-lake-pa-water-level-history.csv

6,561 readings, Sep 30, 2008 to Oct 12, 2026. Daily readings. Columns: date, water_level_ft. 122 KB.

How to cite

MyWaterLevel, “Foster Joseph Sayers Lake water level, 2008 to 2026,” data from U.S. Geological Survey, https://mywaterlevel.com/lake/pa/foster-joseph-sayers-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.