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This probabilistic forecast is issued by the North Central River Forecast Center.
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About this graph
Forecasts for the Des Plaines River near Lemont are issued as needed during times of high water, but are not routinely available.
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Zoom Level:15
Flood Categories (in feet)
Major Flood Stage: 15
Moderate Flood Stage: 13
Flood Stage: 10
Action Stage: 9.5
Low Stage (in feet): -9999

Historic Crests
(1) 12.58 ft on 04/19/2013
(2) 12.42 ft on 10/15/2017 (P)
(3) 12.20 ft on 09/15/2008 (P)
(4) 11.97 ft on 05/02/2019
(5) 11.65 ft on 02/21/2018
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 11.97 ft on 05/02/2019
(2) 11.65 ft on 02/21/2018
(3) 12.42 ft on 10/15/2017 (P)
(4) 11.49 ft on 07/24/2017
(5) 11.05 ft on 07/16/2017
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
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Gauge LocationGauge Map Marker
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
18.5 Residences threatened near Bluff Road and Lemont Road.
16 Lemont Road threatened north of the river. Flood waters may overflow into the Chicago Sanitary & Ship Canal near Lemont.
15 Will County Generating Station property is threatened. Isle a la Cache Museum levee is overtopped.
14 Bluff Road is threatened west of Lemont Road.
13.5 Portions of Centennial Trail near the Romeo Road trailhead are threatened. Flood waters may overflow into the Chicago Sanitary & Ship Canal near Romeoville.
13 The lower parking lot at Isle a la Cache Museum begins to flood.
12.5 Romeo Road is threatened in Romeoville.
11.5 Veterans Memorial Trail threatened north of the river at Keepataw Preserve.
11 Trails at the Isle a la Cache Museum are inundated. Water may begin to overflow into the Chicago Sanitary & Ship Canal near Willow Springs.
10 Low-lying areas of the Black Partridge Forest Preserve are inundated.
Photos
(1) Looking downstream. Aug 19, 2012. Gage height 5.35 ft.
(2) Looking upstream. Aug 19, 2012. Gage height 5.35 ft.

Other Real-time and/or Archive Data Sources:

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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Chicago Weather Forecast Office
333 W. University Dr.
Romeoville, IL 60446
(815) 834-1435
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Page last modified: 7-Nov-2019 3:33 PM
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