Pecatonica River at Freeport, IL

Stephenson County, Illinois · USGS gauge 05435500 · NWS FEEI2 · Pecatonica River flood status · Illinois river levels

Is Pecatonica River at Freeport, IL flooding right now?

Pecatonica River at Freeport, IL measured 10.36 ft on 2026-09-22 20:30:00 UTC. That observation was 2.6 ft below its 13 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
10.36 ft
as of 77 min ago
Streamflow
2,370 cfs
data refreshed 16 min ago

Minor flooding here begins at 13 ft, with major flooding at 16 ft. The highest crest on record was 19.76 ft on Sat, Mar 16, 1929.

Flood forecast

flood stage 13 ft

NWS forecast, issued 11 hours ago. Forecasts are issued for select river points and update through the day.

Flood stages at this gauge

CategoryStageCurrent distance
Action11.5 ft1.1 ft below
Minor flood13 ft2.6 ft below
Moderate flood14 ft3.6 ft below
Major flood16 ft5.6 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

StageDate
19.76 ft1929-03-16
19.4 ft1916-03-28
18.82 ft1922-02-25
18.45 ft1914-09-16
18.36 ft1923-04-06

Nearby gauges

GaugeDistanceCounty
Pecatonica River at Martintown, WI17.3 miGreen County
Rock River at Byron, IL22.1 miOgle County
Sugar River near Brodhead, WI24.2 miGreen County
Pecatonica River near Shirland, Ill24.4 miWinnebago County
Rock River above Dam at Rockford, IL26.6 miWinnebago County
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.

Sources: USGS monitoring location · NWS gauge & forecast