River stage
Last reported 2026-10-13 | NWS LSLI2
In brief
The Illinois River at La Salle, IL read 12.02 ft on Oct 13, 2026, 6.98 ft below action stage.
Source: National Weather Service gauge LSLI2
| Rank | Crest | Date |
|---|---|---|
| 1 | 34.44 ft | 2013-04-20 |
| 2 | 33.79 ft | 2008-09-16 |
| 3 | 33.14 ft | 2020-05-20 |
| 4 | 32.14 ft | 2019-05-03 |
| 5 | 32.05 ft | 1982-12-05 |
| 6 | 32.02 ft | 2009-03-12 |
| 7 | 31.75 ft | 1979-03-21 |
| 8 | 31.70 ft | 1985-03-06 |
Flood crests recorded at this gauge by the National Weather Service.
Low-lying agricultural land near the river is inundated.
Agricultural areas in La Salle, Spring Valley, and Peru are inundated.
Lower parking lot at Starved Rock State Park is inundated east of La Salle. High water levels begin to impact shipping interests along the river.
Dee Bennet Road is threatened between Ottawa and Utica.
Water Street is threatened in Peru.
La Salle water pumping station property is threatened.
A couple structures threatened in North Utica.
Numerous industrial and utility properties are threatened along Water Street near downtown LaSalle. A few residences threatened in North Utica. IL-178 (Clark Street) threatened in North Utica.
A couple structures are threatened near the river in downtown La Salle.
North Utica Village Hall, police department, and wastewater treatment plant property are threatened.
Written by the local National Weather Service forecast office for this exact gauge.
No. The Illinois River at La Salle is at 12.02 ft, 6.98 ft below action stage.
The National Weather Service sets action stage 19 ft, minor flooding 20 ft, moderate flooding 27 ft and major flooding 31 ft.
The highest crest on record is 34.44 ft, on 2013-04-20.
Stage and flood information from the NOAA National Weather Service (gauge LSLI2); daily history from the U.S. Geological Survey (site 411925089063901). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.