Reservoir · Wyoming · United States · BOR RISE
Jackson Lake
Jackson Lake and Jackson Lake Dam
8.1% full
Capacity
1,044.76 hm³
Volume stored
84 hm³
Coordinates
43.858°N, 110.590°W
Last updated
2026-09-30
Current fill
8.1%vs 7 days ago
-0.5%losing
vs 1 year ago
-56.3%year-over-year
7-day trend
→stable
Data source: BOR RISE — US Bureau of Reclamation — 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: 2026-09-30.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 43.858, -110.590 · Open in Google Maps
About Jackson Lake
As of September 30, 2026, Jackson Lake is filled to 8.1% of its total capacity, holding roughly 84 hm³ of water out of a maximum 1,045 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has held broadly steady (-0.5 pts), and it is 56.3 points below its level on the same date a year earlier.
Across the readings we hold for Jackson Lake — 2190 data points between October 2, 2021 and September 30, 2026 — the level has ranged from a low of 8.1% (September 30, 2026) to a high of 99.8% (June 17, 2024). On average the reservoir is fullest around June and at its lowest around October.
It is operated by BOR primarily for multiple purposes. It lies within the Wyoming basin at 43.858°N, 110.590°W.
Key facts
- Current fill level
- 8.1%
- Water stored
- 84 hm³
- Total capacity
- 1,045 hm³
- 7-day change
- ▼ 0.5 pts
- Year-on-year
- ▼ 56.3 pts
- Primary use
- Multipurpose
- River basin
- Wyoming
- Operator
- BOR
- Coordinates
- 43.858°N, 110.590°W
- Last updated
- September 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Sep 2026 | 8.1% | 84 |
| 29 Sep 2026 | 8.4% | 87 |
| 28 Sep 2026 | 8.4% | 87 |
| 27 Sep 2026 | 8.4% | 87 |
| 26 Sep 2026 | 8.4% | 87 |
| 25 Sep 2026 | 8.4% | 88 |
| 24 Sep 2026 | 8.4% | 88 |
| 23 Sep 2026 | 8.6% | 89 |
| 22 Sep 2026 | 8.6% | 90 |
| 21 Sep 2026 | 8.7% | 91 |
| 20 Sep 2026 | 8.8% | 91 |
| 19 Sep 2026 | 9.4% | 98 |