Lake Umatilla Water Level Today
Oregon · near City of the Dalles, Oregon · Near full pool
- Elevation
- 265.31 ft
- From full pool
- −2.69 ft
- Percent of pool
- n/a
- 24-hour change
- +0.04 ft
- 7-day change
- +0.09 ft
- Reading
- Sep 21, 2026 · USACE
Last year at Lake Umatilla
Lake Umatilla is 2.69 ft below full pool, at 265.31 ft, up 0.04 ft in the last 24 hours. The top of the flood pool is 11.2 ft higher, at 276.50 ft.
Over the last 7 days the level rose 0.09 ft, and over 30 days it rose 1.35 ft. In the 397 days of readings on this page the high was 266.11 ft on Jan 21, 2026 and the low was 262.76 ft on Dec 22, 2025, a range of 3.35 ft.
The reading is the U.S. Army Corps of Engineers gauge at John Day Lock and Dam, near City of the Dalles, Oregon, taken Sep 21, 2026 and referenced to the NGVD29 datum. This page is rebuilt once a day from the agency feed; it is not a live gauge, so during a fast rise or a scheduled release check the USACE page for hourly values.
Lake Umatilla pool elevations
| Current elevation | 265.31 ft |
|---|---|
| Full pool (top of conservation) | 268.00 ft |
| Top of flood pool | 276.50 ft |
| Top of dam | 281.00 ft |
| Inflow | 70,400 cfs |
| Outflow | 60,500 cfs |
| 30-day change | +1.35 ft |
| 1-year high | 266.11 ft (Jan 21, 2026) |
| 1-year low | 262.76 ft (Dec 22, 2025) |
| Vertical datum | NGVD29 |
| Operating agency | U.S. Army Corps of Engineers, NWDP district |
Source: U.S. Army Corps of Engineers. Read what full pool and flood pool mean.
More lakes in Oregon
- Applegate Lake 1,904.03 ft, −82.97 ft from full
- Beulah Reservoir 3,289.79 ft, −43.21 ft from full
- Blue River Lake 1,258.54 ft, −91.46 ft from full
- Brownlee Lake 2,055.68 ft, −18.32 ft from full
- Bully Creek Reservoir 2,479.76 ft, −30.24 ft from full
- Cottage Grove Lake 770.54 ft, −19.46 ft from full
Lake Umatilla level questions
What is the water level of Lake Umatilla today?
Lake Umatilla is at 265.31 ft as of Sep 21, 2026, −2.69 ft relative to full pool (268.00 ft). The 24-hour change is +0.04 ft.
What is full pool at Lake Umatilla?
Full pool, the top of the conservation pool, is 268.00 ft (NGVD29). Above that, water is stored temporarily in the flood pool up to 276.50 ft.
Is Lake Umatilla rising or falling?
Over the last 24 hours the level is +0.04 ft; over 7 days it rose 0.09 ft, and over 30 days it rose 1.35 ft.
Where does this Lake Umatilla level come from?
From the U.S. Army Corps of Engineers (USACE) public data feed for John Day Lock and Dam. Lake Levels Today republishes the agency's daily value without adjustment and links to the source below.