Mississippi River at St. Louis, MO
St. Louis City, Missouri · USGS 07010000
Latest observation
What this gauge represents: This gauge measures conditions on Mississippi River at its USGS monitoring location in St. Louis City; conditions elsewhere on the waterway may differ.
Observed · 18 minutes ago
Observed
How to read these numbers
How much water moves past the gauge each second. Higher numbers mean more water is moving downstream.
The water-surface height at this gauge. It is useful for tracking rises, falls and flood thresholds, but it is not the river's total depth.
How much the latest reading has risen or fallen compared with roughly 24 hours earlier.
The typical streamflow for this date based on USGS historical statistics. A multiple such as 3× means current flow is about three times the historical median.
Get Water Data's plain-language summary of current flow, historical context and recent direction.
Official action and flood thresholds where available. These levels are specific to each gauge location.
Gauge height and flood stage are station-specific. A 12-foot reading at one gauge should not be directly compared with 12 feet at another.
Above historical median · Rising
Streamflow is currently 273,000 ft³/s, 145% above the historical median for this date. Flow has risen 8,000 CFS over the past 24 hours.
USGS-reported historical daily median for 09-27: 111,500 ft³/s · Based on USGS day-of-year statistics
How trends & context are calculated →Streamflow trend
Daily mean streamflow · Aug 28–Sep 25 · dates shown in UTC · 28 observations
Data gap: 1 calendar day is missing in this coverage. The line stops across missing observations.
Look at the data (28 rows)
| Date (UTC) | Daily mean |
|---|---|
| Aug 28, 2026, 12:00 AM | 144,000 CFS |
| Aug 29, 2026, 12:00 AM | 139,000 CFS |
| Aug 30, 2026, 12:00 AM | 130,000 CFS |
| Aug 31, 2026, 12:00 AM | 122,000 CFS |
| Sep 1, 2026, 12:00 AM | 126,000 CFS |
| Sep 2, 2026, 12:00 AM | 127,000 CFS |
| Sep 3, 2026, 12:00 AM | 119,000 CFS |
| Sep 4, 2026, 12:00 AM | 112,000 CFS |
| Sep 5, 2026, 12:00 AM | 100,000 CFS |
| Sep 6, 2026, 12:00 AM | 97,700 CFS |
| Sep 7, 2026, 12:00 AM | 93,200 CFS |
| Sep 8, 2026, 12:00 AM | 90,400 CFS |
| Sep 9, 2026, 12:00 AM | 88,900 CFS |
| Sep 11, 2026, 12:00 AM | 96,500 CFS |
| Sep 12, 2026, 12:00 AM | 103,000 CFS |
| Sep 13, 2026, 12:00 AM | 120,000 CFS |
| Sep 14, 2026, 12:00 AM | 123,000 CFS |
| Sep 15, 2026, 12:00 AM | 109,000 CFS |
| Sep 16, 2026, 12:00 AM | 105,000 CFS |
| Sep 17, 2026, 12:00 AM | 114,000 CFS |
| Sep 18, 2026, 12:00 AM | 133,000 CFS |
| Sep 19, 2026, 12:00 AM | 150,000 CFS |
| Sep 20, 2026, 12:00 AM | 170,000 CFS |
| Sep 21, 2026, 12:00 AM | 199,000 CFS |
| Sep 22, 2026, 12:00 AM | 225,000 CFS |
| Sep 23, 2026, 12:00 AM | 249,000 CFS |
| Sep 24, 2026, 12:00 AM | 253,000 CFS |
| Sep 25, 2026, 12:00 AM | 262,000 CFS |
About this gauge
Official USGS station
Get Water Data organizes provisional public monitoring data from the U.S. Geological Survey.
View USGS station →