Stillwater Lake Water Level
Pennsylvania · updated daily from the U.S. Geological Survey
1572.90 ft
Stillwater Lake is low for this time of year and steady (-0.10 ft in the last 7 days).
Change since yesterday: +0.08 ft
Reading as of 2026-08-14 · higher than 18% of August readings on record
Where Stillwater Lake sits historically
Today's level compared with every reading in our 9.9-year record for this lake.
Since yesterday
+0.08 ft
7-day change
-0.10 ft
30-day change
+0.21 ft
1-year change
+0.44 ft
Last 30 days
Last 12 months
Full history (9.9 years)
Stillwater Lake records and averages
| Current level | 1572.90 ft |
|---|---|
| Record high | 1601.31 ft (2024-08-10) |
| Record low | 1572.0 ft (2025-09-21) |
| Average of all readings | 1574.43 ft |
| Data span | 9.9 years (3,595 readings) |
Frequently asked questions
Is Stillwater Lake full right now?
As of 2026-08-14, Stillwater Lake sits at 1572.90 ft, which is low for this time of year.Over the past 30 days the level has risen 0.21 ft.
What is the water level at Stillwater Lake today?
The most recent reading is 1572.90 ft (2026-08-14), sourced from the U.S. Geological Survey. Readings on this page refresh automatically as the agency publishes new data.
What is the highest Stillwater Lake has ever been?
The highest level in our records is 1601.31 ft on 2024-08-10. The lowest is 1572.0 ft on 2025-09-21. Our record covers about 9.9 years of readings.
Is Stillwater Lake low for this time of year?
Compared with every August in our records, the current level is higher than 18% of them — low 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 Stillwater 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. Stillwater Lake has risen 0.21 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.
How much has Stillwater Lake changed over the past year?
The level is +0.44 ft compared with this date last year (1572.90 ft today). The full-history chart above covers 9.9 years, with a record high of 1601.31 ft and a record low of 1572.0 ft.
Nearby lakes in Pennsylvania
Source: the U.S. Geological Survey. Readings are provisional and subject to revision by the publishing agency. All Pennsylvania lake levels.