River stage
Illinois River (IL)
- River level
- Normal
- Status
- Below flood stage
Latest readings 2026-10-13 | NWS · USGS
- Gauges reporting
- 19 of 19
- Above flood stage
- 0
- Above action stage
- 0
- Overall
- Below flood stage
- Publisher
- NWS · USGS
In brief
On Oct 13, 2026, 19 of 19 gauges on the Illinois River (IL) reported, and none was above flood stage.
Source: National Weather Service and USGS gauges
Illinois River levels, gauge by gauge
The Illinois River is measured at 19 gauges. Flood stages are set per gauge, so the same river is "high" at one town and normal at the next.
| Location | Level | Status |
|---|---|---|
| Beardstown | 9.19 ft | normal, steady |
| Copperas Creek | 6.38 ft | no flood stage set |
| Dresden Lock (tailwater) | 484.34 ft | below flood stage |
| Hardin | 21.59 ft | normal, steady |
| Havana | 8.78 ft | normal, steady |
| Henry | 15.04 ft | normal, falling |
| Kingston Mines | 6.70 ft | no flood stage set |
| La Salle | 12.02 ft | normal, steady |
| LaGrange Lock and Dam | 13.87 ft | below flood stage |
| Marseilles | 11.73 ft | normal, falling |
| Marseilles Lock (tailwater) | 459.26 ft | below flood stage |
| Meredosia | 8.36 ft | normal, falling |
| Morris | 5.46 ft | normal, falling |
| Ottawa | 458.69 ft | normal, steady |
| Peoria | 11.96 ft | normal, steady |
| Peoria Lock and Dam | 434.97 ft | below flood stage |
| Seneca | 20.65 ft | normal, falling |
| Starved Rock Lock (tailwater) | 442.07 ft | below flood stage |
| Valley City | 7.17 ft | normal, falling |
Recent levels on the Illinois River
The gauge with the fullest recent record on this river is Henry, IL, with 122 days of readings.
Other rivers nearby
- Illinois River (AR, OK) different river, same name
- Illinois River (CO) different river, same name
- Illinois River (OR) different river, same name
- Salt Creek (IL) 3 gauges
- Vermilion River (IL) 3 gauges
- Green River (IL) 1 gauge
- Salt Creek (IL, IN) 7 gauges
- Des Plaines River 11 gauges
Frequently asked questions
Is the Illinois River flooding right now?
No. Every one of the 19 reporting gauges on the Illinois River is below flood stage as of 2026-10-13.
How high is the Illinois River?
The river is measured at several points and each reads a different height. Beardstown is at 9.19 ft; Hardin is at 21.59 ft; Havana is at 8.78 ft; Henry is at 15.04 ft.
Where is the Illinois River measured?
The National Weather Service and USGS operate 19 gauges on the Illinois River in Illinois.
What does flood stage mean?
Flood stage is the height at which a river begins to cause problems at that specific location. It is set per gauge, so the same river can be above flood stage in one town and normal a few miles downstream. Action stage is the lower level at which forecasters start watching closely.
River stages and flood categories from the NOAA National Weather Service; daily history from the U.S. Geological Survey. For flood safety decisions always follow official National Weather Service warnings.