Long Pond Water Level
Massachusetts · updated daily from the U.S. Geological Survey
52.69 ft
Long Pond is current reading available and falling (-0.17 ft in the last 7 days).
Change since yesterday: -0.01 ft
Reading as of 2026-08-16
Where Long Pond sits historically
Today's level compared with every reading in our 0.3-year record for this lake.
Since yesterday
-0.01 ft
7-day change
-0.17 ft
30-day change
+0.06 ft
1-year change
— ft
Last 30 days
Last 12 months
Long Pond records and averages
| Current level | 52.69 ft |
|---|---|
| Record high | 53.42 ft (2026-04-18) |
| Record low | 52.44 ft (2026-06-22) |
| Average of all readings | 52.84 ft |
| Data span | 0.3 years (121 readings) |
Frequently asked questions
Is Long Pond full right now?
As of 2026-08-16, Long Pond sits at 52.69 ft, which is current reading available.Over the past 30 days the level has risen 0.06 ft.
What is the water level at Long Pond today?
The most recent reading is 52.69 ft (2026-08-16), sourced from the U.S. Geological Survey. Readings on this page refresh automatically as the agency publishes new data.
What is the highest Long Pond has ever been?
The highest level in our records is 53.42 ft on 2026-04-18. The lowest is 52.44 ft on 2026-06-22. Our record covers about 0.3 years of readings.
Why is Long Pond low 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. Long Pond has risen 0.06 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.
How much has Long Pond changed over the past year?
Year-over-year comparison is not available for this lake yet. The full-history chart above covers 0.3 years, with a record high of 53.42 ft and a record low of 52.44 ft.
Nearby lakes in Massachusetts
Source: the U.S. Geological Survey. Readings are provisional and subject to revision by the publishing agency. All Massachusetts lake levels.