Streamflow discharge was last observed at 4,080 cfs, and a gauge height of 4.40 feet.
With the
% decrease since yesterday,
the streamflow average over the past 10 days is 4,756 .
Weather today, Tomorrow,
The river is fed by various tributaries, including the Kishwaukee River, and it passes through several dams along its course. The flow of the river is affected by seasonal trends, with typically higher flows in the spring due to snowmelt and rain. However, the river can also experience flooding during heavy rainfall events. One interesting fact about the hydrology of the Rock River is that it is home to various fish species, including smallmouth bass and channel catfish.
| Elevation | 712.0 ft |
| Last Updated | |
| Gage height, ft | 4.4 ft |
| Streamflow, ft³/s | 4080.0 ft3/s |
| Percent of Normal | 75% |
| Year Over Year Average | 5,495 cfs |
| 24hr Flow Prediction | cfs |
| Maximum Recorded | 28,100 cfs |