Fort Peck Lake Water Level Today
Montana · near Williston · Below full pool
- Elevation
- 2,222.45 ft
- From full pool
- −11.55 ft
- Percent of pool
- n/a
- 24-hour change
- −0.04 ft
- 7-day change
- −0.28 ft
- Reading
- Sep 21, 2026 · USACE
Last year at Fort Peck Lake
Fort Peck Lake is 11.55 ft below full pool, at 2,222.45 ft, down 0.04 ft in the last 24 hours. The top of the flood pool is 27.6 ft higher, at 2,250.00 ft.
Over the last 7 days the level fell 0.28 ft, and over 30 days it fell 0.85 ft. In the 400 days of readings on this page the high was 2,225.24 ft on Aug 17, 2025 and the low was 2,221.75 ft on Jan 30, 2026, a range of 3.49 ft.
The reading is the U.S. Army Corps of Engineers gauge at Fort Peck Dam & Reservoir, near Williston, 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.
Fort Peck Lake pool elevations
| Current elevation | 2,222.45 ft |
|---|---|
| Full pool (top of conservation) | 2,234.00 ft |
| Top of flood pool | 2,250.00 ft |
| Top of dam | 2,280.50 ft |
| Inflow | 5,000 cfs |
| Outflow | 7,015 cfs |
| 30-day change | −0.85 ft |
| 1-year high | 2,225.24 ft (Aug 17, 2025) |
| 1-year low | 2,221.75 ft (Jan 30, 2026) |
| Vertical datum | NGVD29 |
| Operating agency | U.S. Army Corps of Engineers, NWDM district |
Source: U.S. Army Corps of Engineers. Read what full pool and flood pool mean.
More lakes in Montana
- Lake Koocanusa 2,444.76 ft, −14.24 ft from full
- Canyon Ferry Reservoir 3,785.41 ft, −11.59 ft from full
- Clark Canyon Reservoir 5,514.74 ft, −31.36 ft from full
- Flathead Lake 2,893.05 ft, +0.05 ft from full
- Tiber Reservoir 2,988.17 ft, −4.83 ft from full
- Yellowtail Reservoir 3,623.41 ft, −16.59 ft from full
Fort Peck Lake level questions
What is the water level of Fort Peck Lake today?
Fort Peck Lake is at 2,222.45 ft as of Sep 21, 2026, −11.55 ft relative to full pool (2,234.00 ft). The 24-hour change is −0.04 ft.
What is full pool at Fort Peck Lake?
Full pool, the top of the conservation pool, is 2,234.00 ft (NGVD29). Above that, water is stored temporarily in the flood pool up to 2,250.00 ft.
Is Fort Peck Lake rising or falling?
Over the last 24 hours the level is −0.04 ft; over 7 days it fell 0.28 ft, and over 30 days it fell 0.85 ft.
Where does this Fort Peck Lake level come from?
From the U.S. Army Corps of Engineers (USACE) public data feed for Fort Peck Dam & Reservoir. Lake Levels Today republishes the agency's daily value without adjustment and links to the source below.