Rock River at Afton, WI
Is Rock River at Afton, WI flooding right now?
Rock River at Afton, WI measured 3.99 ft on 2026-09-11 01:00:00 UTC. That observation was 5.0 ft below its 9 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
3.99 ft
Streamflow
1,460 cfs
Minor flooding here begins at 9 ft, with major flooding at 12.2 ft. The highest crest on record was 13.51 ft on Sat, Jun 21, 2008.
Streamflow outlook
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 8 ft | 4.0 ft below |
| Minor flood | 9 ft | 5.0 ft below |
| Moderate flood | 11.1 ft | 7.1 ft below |
| Major flood | 12.2 ft | 8.2 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 13.51 ft | 2008-06-21 |
| 13.05 ft | 1916-02-05 |
| 12.21 ft | 2008-01-23 |
| 12.11 ft | 2026-04-18 |
| 11.86 ft | 1979-04-05 |
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Markham Creek at O Leary Road near Janesville, WI | 2.1 mi | Rock County |
| Discovery Farms Core Waterwy Ar2 near Janesville, WI | 3.7 mi | Rock County |
| Discovery Farms Core Waterwy Ar1 near Janesville, WI | 4.2 mi | Rock County |
| Stevens Creek near Footville, WI | 5.5 mi | Rock County |
| Rock River at Rockton, IL | 11.3 mi | Winnebago County |
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Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.