Sawmill Creek near Lemont, IL

DuPage County, Illinois · USGS gauge 05533400 · NWS LMTI2 · Illinois river levels

Is Sawmill Creek near Lemont, IL flooding right now?

Sawmill Creek near Lemont, IL measured 9.05 ft on 2026-09-22 21:00:00 UTC. That observation was 4.9 ft below its 14 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height

9.05 ft

as of 35 min ago

Streamflow

24 cfs

data refreshed 4 min ago

Minor flooding here begins at 14 ft, with major flooding at 20 ft. The highest crest on record was 17.53 ft on Thu, Jul 18, 1996.

Streamflow outlook

NOAA National Water Model forecast, issued 10 hours ago. The NWM models discharge for every river reach in the country, including the many gauges the National Weather Service does not forecast individually. It is a model, not an official NWS river forecast, and it predicts flow rather than water level.

Flood stages at this gauge

Category	Stage	Current distance
Action	12.5 ft	3.4 ft below
Minor flood	14 ft	4.9 ft below
Moderate flood	16 ft	6.9 ft below
Major flood	20 ft	10.9 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

Stage	Date
17.53 ft	1996-07-18
15.24 ft	2013-04-18
14.64 ft	1997-02-21
14.46 ft	2020-05-17
13.97 ft	2016-07-29

Nearby gauges

Gauge	Distance	County
Chicago Sanitary and Ship Canal near Lemont, IL	1.1 mi	DuPage County
Chicago Sanitary and Ship Canal at Lemont, IL	2.8 mi	Cook County
Flag Creek near Willow Springs, IL	4.0 mi	Cook County
Des Plaines River near Lemont, IL	4.2 mi	Will County
Long Run near Lemont, IL	4.9 mi	Cook 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