Rock River at Rockton, IL
River level and flood forecast · Winnebago County
Normal5.6 ftas of Mon 2:30 PM
The river is 4.4 ft below flood stage (10 ft).
Flow: 5,560 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sat, Sep 19, 9:01 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 14 ft |
| Moderate flood stage | 11 ft |
| Flood stage | 10 ft |
| Action stage | 8.5 ft |
| Record crest (March 25, 1975) | 15.54 ft |
What floods at each level
From the National Weather Service, highest first.
- 17.5 ftStructures threatened along Hawick Street in downtown Rockton.
- 17 ftRockton Road is threatened west of Rockton.
- 15 ftHawick Street threatened near Settlers Park in Rockton.
- 14 ftLow-lying structures threatened off Main Street in Rockton. Roscoe Road threatened west of Roscoe. Prairie Hill Road inundated north of Rockton.
- 13.5 ftOld River Road threatened west of Roscoe Bridge.
- 12 ftMultiple low-lying roads threatened along the river in Roscoe.
- 10.5 ftEdgemere Terrace threatened near Roscoe.
- 10 ftLow-lying structures are threatened along Edgemere Terrace near Roscoe.
- 9 ftLow-lying areas of Settlers Park in Rockton are inundated.
- 8 ftWater overflows low-lying banks along Edgemere Terrace near Roscoe.
- 7 ftLow-lying areas of Riverside Park near Roscoe are inundated.
Highest crests on record
- 15.54 ft — March 25, 1975
- 15.13 ft — March 17, 2019
- 14.72 ft — June 17, 2008
- 14.08 ft — April 4, 1959
- 13.82 ft — March 20, 1948
Recent crests: 11.25 ft (July 17, 2024) · 9.14 ft (June 6, 2024) · 10.4 ft (April 8, 2024) · 9.15 ft (April 5, 2023) · 9.12 ft (March 6, 2023)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (ROKI2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.