North Fork Sun River Near Augusta Mount
USGS Site No: 06078500 • North Fork Sun River • Teton County, MT
North Fork Sun River Near Augusta Mount on the North Fork Sun River is currently at 1,780 cfs (Very High — 155th percentile for this date) . Gage height: 6.44 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 28 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 | 62 | |
| 25th | Low threshold | 75 | |
| 50th (Median) | Normal (median) | 108 | |
| 75th | High threshold | 141 | |
| 95th | Very High threshold | 253 |
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 | 1,700 | — |
| May 27, 2026 | 1,450 | — |
| May 26, 2026 | 1,080 | — |
| May 25, 2026 | 810 | — |
| May 24, 2026 | 608 | — |
| May 23, 2026 | 534 | — |
| May 22, 2026 | 542 | — |
| May 21, 2026 | 584 | — |
| May 20, 2026 | 610 | — |
| May 19, 2026 | 652 | — |
| May 18, 2026 | 728 | — |
| May 17, 2026 | 836 | — |
| May 16, 2026 | 988 | — |
| May 15, 2026 | 1,230 | — |
| Apr 20, 2026 | 493 | — |
| Apr 19, 2026 | 468 | — |
| Apr 18, 2026 | 487 | — |
| Apr 17, 2026 | 526 | — |
| Apr 16, 2026 | 585 | — |
| Apr 15, 2026 | 630 | — |
| Apr 14, 2026 | 670 | — |
| Apr 13, 2026 | 690 | — |
| Apr 12, 2026 | 663 | — |
| Apr 11, 2026 | 578 | — |
| Apr 10, 2026 | 513 | — |
| Apr 9, 2026 | 500 | — |
| Apr 8, 2026 | 519 | — |
| Apr 7, 2026 | 542 | — |
| Apr 6, 2026 | 459 | — |
| Apr 5, 2026 | 425 | — |
Station Information
- USGS Site No
- 06078500
- State
- MT
- County
- Teton County
- Coordinates
- 47.6399, -112.8593
- Drainage Area
- 259 mi²
- Datum (ft)
- 4,783.8
- HUC Code
- 10030104
Flood Stage Thresholds
- Flood Stage
- 9.0 ft
Currently 2.56 ft below flood stage.
Recent Extremes
- Max discharge
-
2,510 cfsMar 21, 2026
- Min discharge
-
55 cfsSep 29, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
South Fork Sun River Near Augusta MountVery High0.8 mi · 2,350 cfs
-
Sun River below Diversion Dam near Augusta MountVery High7.9 mi · 3,420 cfs
-
Teton River below South Fork near Choteau MountVery High20.4 mi · 417 cfs
-
Sun River below Willow Creek near Augusta MountVery High23.8 mi · 3,700 cfs
-
South F Flathead River above Twin C near Hungry Horse MountVery High40.1 mi · 13,600 cfs