Missouri River at St. Charles, MO
USGS Site No: 06935965 • Missouri River • St. Louis County, MO
Missouri River at St. Charles, MO on the Missouri River is currently at 117,000 cfs (High — 84th percentile for this date) . Gage height: 17.52 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 | 34,900 | |
| 25th | Low threshold | 43,700 | |
| 50th (Median) | Normal (median) | 50,900 | |
| 75th | High threshold | 82,400 | |
| 95th | Very High threshold | 161,000 | Today: 117,000 cfs |
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 | 125,000 | — |
| May 27, 2026 | 138,000 | — |
| May 26, 2026 | 157,000 | — |
| May 25, 2026 | 179,000 | — |
| May 24, 2026 | 201,000 | — |
| May 23, 2026 | 221,000 | — |
| May 22, 2026 | 230,000 | — |
| May 21, 2026 | 212,000 | — |
| May 20, 2026 | 180,000 | — |
| May 19, 2026 | 86,200 | — |
| May 18, 2026 | 63,800 | — |
| May 17, 2026 | 67,300 | — |
| May 16, 2026 | 73,400 | — |
| May 15, 2026 | 80,400 | — |
| Apr 20, 2026 | 171,000 | — |
| Apr 19, 2026 | 173,000 | — |
| Apr 18, 2026 | 127,000 | — |
| Apr 17, 2026 | 120,000 | — |
| Apr 16, 2026 | 126,000 | — |
| Apr 15, 2026 | 98,200 | — |
| Apr 14, 2026 | 83,800 | — |
| Apr 13, 2026 | 77,400 | — |
| Apr 12, 2026 | 78,300 | — |
| Apr 11, 2026 | 85,700 | — |
| Apr 10, 2026 | 91,800 | — |
| Apr 9, 2026 | 101,000 | — |
| Apr 8, 2026 | 112,000 | — |
| Apr 7, 2026 | 124,000 | — |
| Apr 6, 2026 | 146,000 | — |
| Apr 5, 2026 | 165,000 | — |
Station Information
- USGS Site No
- 06935965
- State
- MO
- County
- St. Louis County
- Coordinates
- 38.7872, -90.4718
- Drainage Area
- 524,000 mi²
- Datum (ft)
- 413.5
- HUC Code
- 10300200
Flood Stage Thresholds
- Action Stage
- 23.0 ft
- Flood Stage
- 25.0 ft
- Moderate Flood
- 30.0 ft
- Major Flood
- 36.0 ft
Currently 7.48 ft below flood stage.
Recent Extremes
- Max discharge
-
230,000 cfsMay 22, 2026
- Min discharge
-
27,100 cfsFeb 5, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Cowmire Creek at Bridgeton, MONormal2.6 mi · 1 cfs
-
Fee Fee Creek Near Bridgeton, MOVery Low4.3 mi · 0 cfs
-
Creve Coeur Creek Near Creve Coeur, MONormal7.3 mi · 7 cfs
-
Dardenne Creek at Old Town St. Peters, MONormal8.5 mi · 9 cfs
-
Creve Coeur Creek at Chesterfield, MONormal10.2 mi · 2 cfs