River stage
Como, Rock River
- River level
- 4.98 ft
- Status
- Below flood stage
- 7-day change
- -1.80 ft
- Recent high
- 8.30 ft
- Recent low
- 3.18 ft
Last reported 2026-10-14 | NWS CMOI2
- 30-day change
- +1.71 ft
- Average
- 4.91 ft
- Readings
- 122
- Data span
- 122 days
- Record crest
- 15.64 ft
In brief
The Rock River at Como, IL read 4.98 ft on Oct 14, 2026, 5.02 ft below action stage. That is 1.71 ft higher than 30 days earlier.
Source: National Weather Service gauge CMOI2
River level timeline
Stage threshold profile
Highest crests on record
| Rank | Crest | Date |
|---|---|---|
| 1 | 15.64 ft | 2017-07-23 |
| 2 | 15.18 ft | 2019-03-16 |
| 3 | 14.68 ft | 2018-02-21 |
| 4 | 13.30 ft | 2019-10-05 |
| 5 | 12.97 ft | 2024-07-16 |
| 6 | 11.64 ft | 2015-06-16 |
| 7 | 9.86 ft | 2015-12-15 |
Flood crests recorded at this gauge by the National Weather Service.
What happens at each level
- 10.00 ft
Water begins to encroach on the parking area at Prophetstown State Park.
- 12.30 ft
Water begins to encroach on the parking areas at Lawrence Park boat launch in Sterling and the Moline Road rest area boat launch southwest of Como.
- 12.80 ft
Water begins to encroach into properties on Regan Road northeast of Como.
- 15.60 ft
Blue Goose Road near Anderson Road east of Lyndon is overtopped and south of Como, water is encroaching onto Prophetstown Road west of Luther Road.
Written by the local National Weather Service forecast office for this exact gauge.
Frequently asked questions
Is the Rock River flooding at Como?
No. The Rock River at Como is at 4.98 ft, 5.02 ft below action stage.
What is the flood stage at Como?
The National Weather Service sets action stage 10 ft, minor flooding 12.5 ft, moderate flooding 15.5 ft and major flooding 18 ft.
What is the highest the Rock River has been at Como?
The highest crest on record is 15.64 ft, on 2017-07-23.
Is the Rock River high or low right now at Como?
At 4.98 ft it is higher than 58% of readings over the last 122 days.
Stage and flood information from the NOAA National Weather Service (gauge CMOI2); daily history from the U.S. Geological Survey (site 05443500). Last reading 2026-10-14. For flood safety decisions always follow official National Weather Service warnings.