Bighorn River below Yellowtail Afterbay Dam near St. Xavier
USGS Site No: 06287000 • Bighorn River • Big Horn County, MT
Bighorn River below Yellowtail Afterbay Dam near St. Xavier on the Bighorn River is currently at 1,520 cfs (Low — 11th percentile for this date) . Gage height: 59.43 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 27 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 1,500 | |
| 25th | Low threshold | 2,070 | Today: 1,520 cfs |
| 50th (Median) | Normal (median) | 2,890 | |
| 75th | High threshold | 3,600 | |
| 95th | Very High threshold | 4,630 |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 1,470 | — |
| May 27, 2026 | 1,440 | — |
| May 26, 2026 | 1,440 | — |
| May 25, 2026 | 1,440 | — |
| May 24, 2026 | 1,450 | — |
| May 23, 2026 | 1,450 | — |
| May 22, 2026 | 1,450 | — |
| May 21, 2026 | 1,450 | — |
| May 20, 2026 | 1,490 | — |
| May 19, 2026 | 1,520 | — |
| May 18, 2026 | 1,520 | — |
| May 17, 2026 | 1,520 | — |
| May 16, 2026 | 1,520 | — |
| May 15, 2026 | 1,530 | — |
| Apr 20, 2026 | 1,690 | — |
| Apr 19, 2026 | 1,580 | — |
| Apr 18, 2026 | 1,580 | — |
| Apr 17, 2026 | 1,600 | — |
| Apr 16, 2026 | 1,690 | — |
| Apr 15, 2026 | 1,760 | — |
| Apr 14, 2026 | 1,750 | — |
| Apr 13, 2026 | 1,740 | — |
| Apr 12, 2026 | 1,740 | — |
| Apr 11, 2026 | 1,750 | — |
| Apr 10, 2026 | 1,750 | — |
| Apr 9, 2026 | 1,750 | — |
| Apr 8, 2026 | 1,750 | — |
| Apr 7, 2026 | 1,740 | — |
| Apr 6, 2026 | 1,750 | — |
| Apr 5, 2026 | 1,740 | — |
Station Information
- USGS Site No
- 06287000
- State
- MT
- County
- Big Horn County
- Coordinates
- 45.3169, -107.9189
- Drainage Area
- 19,670 mi²
- Datum (ft)
- 3,100.0
- HUC Code
- 10080015
Recent Extremes
- Max discharge
-
3,510 cfsJun 3, 2025
- Min discharge
-
1,440 cfsMay 27, 2026
Computed from the local daily-values archive.
Nearby Gauges
-
Big Horn Canal Near St. Xavier MountVery High0.0 mi · 349 cfs
-
Bighorn River at Bridge, at St. Xavier, MountVery Low12.9 mi · 1,520 cfs
-
Lodge Grass Creek above Willow Creek Diversion, near Wyola MountNormal20.2 mi · 21 cfs
-
Bighorn River at Two Leggins Bridge, Near HardinVery Low25.9 mi · 1,180 cfs
-
Little Bighorn River at State Line near Wyola MountVery High26.0 mi · 286 cfs