Reservoir · Montana · United States · USACE CWMS
Pishkun Reservoir
96.0% full
Capacity
57.57 hm³
Volume stored
55 hm³
Coordinates
47.677°N, 112.497°W
Last updated
2026-08-13
Current fill
96.0%vs 7 days ago
+9.1%gaining
vs 1 year ago
+31.3%year-over-year
7-day trend
↑rising
Data source: USACE CWMS — US Army Corps of Engineers — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. Last reading: 2026-08-13.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 47.677, -112.497 · Open in Google Maps
About Pishkun Reservoir
As of August 13, 2026, Pishkun Reservoir is filled to 96.0% of its total capacity, holding roughly 55 hm³ of water out of a maximum 58 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has risen by 9.1 percentage points, and it is 31.3 points above its level on the same date a year earlier.
Across the readings we hold for Pishkun Reservoir — 1786 data points between August 15, 2021 and August 13, 2026 — the level has ranged from a low of 59.2% (April 15, 2026) to a high of 100.2% (July 3, 2026). On average the reservoir is fullest around June and at its lowest around March.
It is operated by USACE primarily for multiple purposes. It lies within the Montana basin at 47.677°N, 112.497°W.
Key facts
- Current fill level
- 96.0%
- Water stored
- 55 hm³
- Total capacity
- 58 hm³
- 7-day change
- ▲ 9.1 pts
- Year-on-year
- ▲ 31.3 pts
- Primary use
- Multipurpose
- River basin
- Montana
- Operator
- USACE
- Coordinates
- 47.677°N, 112.497°W
- Last updated
- August 13, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 13 Aug 2026 | 96.0% | 55 |
| 12 Aug 2026 | 94.6% | 54 |
| 11 Aug 2026 | 93.2% | 54 |
| 10 Aug 2026 | 91.7% | 53 |
| 9 Aug 2026 | 90.4% | 52 |
| 8 Aug 2026 | 89.1% | 51 |
| 7 Aug 2026 | 87.9% | 51 |
| 6 Aug 2026 | 86.9% | 50 |
| 5 Aug 2026 | 86.1% | 50 |
| 4 Aug 2026 | 85.4% | 49 |
| 3 Aug 2026 | 85.0% | 49 |
| 2 Aug 2026 | 84.5% | 49 |
Frequently asked questions
What is the current water level of Pishkun Reservoir?
As of August 13, 2026, Pishkun Reservoir is at 96.0% of its capacity, holding approximately 55 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Pishkun Reservoir reservoir full?
Pishkun Reservoir is essentially full, sitting at 96.0% of capacity as of August 13, 2026.
Is the water level at Pishkun Reservoir rising or falling?
The level at Pishkun Reservoir is rising — it gained 9.1 percentage points over the latest week on record.
How much water can Pishkun Reservoir hold?
Pishkun Reservoir has a total capacity of 58 hm³.
Where is Pishkun Reservoir reservoir located?
Pishkun Reservoir is located in Montana, United States, within the Montana basin (coordinates 47.677°N, 112.497°W).
What is Pishkun Reservoir used for?
Pishkun Reservoir is used primarily for multiple purposes, and is managed by USACE.