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Illinois River near Henry

Critical Stages
22' - Action
23' - Flood
24' - Moderate
31' - Major

Latest Observation

Updated: 9:45 PM CST 12/14/25

Status: No Flooding

Stage: 14.29 ft

Flow: 2.55 kcfs

Forecast

TimeStage (ft)Flow (kcfs)
12 AM 12/15 14.3 2.59
6 AM 12/15 14.2 2.26
12 PM 12/15 14.2 2.26
6 PM 12/15 14.2 2.26
12 AM 12/16 14.1 0
6 AM 12/16 14.1 0
12 PM 12/16 14.1 0
6 PM 12/16 14.1 0
12 AM 12/17 14.1 0
6 AM 12/17 14.1 0
12 PM 12/17 14.1 0
6 PM 12/17 14.1 0
12 AM 12/18 14.1 0
6 AM 12/18 14.1 0
12 PM 12/18 14.1 0
6 PM 12/18 14.2 2.26
12 AM 12/19 14.2 2.26
6 AM 12/19 14.3 2.59
12 PM 12/19 14.4 2.96
6 PM 12/19 14.5 3.38
12 AM 12/20 14.5 3.38
6 AM 12/20 14.6 3.86
12 PM 12/20 14.6 3.86
6 PM 12/20 14.6 3.86
12 AM 12/21 14.6 3.86
6 AM 12/21 14.5 3.38
12 PM 12/21 14.4 2.96
6 PM 12/21 14.4 2.96
TimeStage (ft)Flow (kcfs)
10:45 PM 12/14 14.27 2.49
10:30 PM 12/14 14.28 2.52
10:15 PM 12/14 14.29 2.55
10:00 PM 12/14 14.28 2.52
9:45 PM 12/14 14.29 2.55
9:30 PM 12/14 14.29 2.55
9:15 PM 12/14 14.29 2.55
9:00 PM 12/14 14.29 2.55
8:45 PM 12/14 14.3 2.59
8:30 PM 12/14 14.3 2.59
8:15 PM 12/14 14.31 2.62
8:00 PM 12/14 14.31 2.62
7:45 PM 12/14 14.32 2.66
7:30 PM 12/14 14.32 2.66
7:15 PM 12/14 14.33 2.7
7:00 PM 12/14 14.32 2.66
6:45 PM 12/14 14.32 2.66
6:30 PM 12/14 14.33 2.7
6:15 PM 12/14 14.33 2.7
6:00 PM 12/14 14.33 2.7
5:45 PM 12/14 14.33 2.7
5:30 PM 12/14 14.33 2.7
5:15 PM 12/14 14.34 2.73
5:00 PM 12/14 14.32 2.66
4:45 PM 12/14 14.38 2.88
4:30 PM 12/14 14.33 2.7
4:15 PM 12/14 14.33 2.7
4:00 PM 12/14 14.34 2.73
3:45 PM 12/14 14.34 2.73
3:30 PM 12/14 14.34 2.73
Hydrograph for Illinois River near Henry
32.5' - Illinois Route 18 in Marshall County is closed. Parts of Illinois Route 17 between Sparland and Lacon are closed.
32' - Water begins flooding parts of Illinois Route 18 between Henry and Illinois Route 26. Parts of Illinois Route 17 begin to flood.
30.5' - The Marina building is flooded. Inundation from Waterworks Park on Cromwell Drive toward old grain elevator location on Water Street.
29.6' - A few homes begin to flood in Henry.
28.5' - Hennepin levee overtopped.
28' - Flooding begins to affect buildings east of Illinois Route 29 in Sparland.
23' - Water begins to affect the marina in Henry along with minor flooding of land adjacent to the river.
DateStage (ft)
Apr 22, 2013 32.94
Mar 22, 1979 32.67
May 23, 1943 32.2
Mar 7, 1985 32.02
May 21, 2020 31.62
Mar 13, 2009 31.49
May 6, 2019 31.35
Mar 5, 1985 31.25
Sep 19, 2008 30.98
Mar 22, 1982 30.74
Dec 8, 1982 30.7
Mar 2, 1997 30.56
Jun 30, 2015 30.39
Jun 1, 2019 30.01
Dec 7, 1982 29.97
Jan 2, 2016 29.78
Feb 27, 2018 29.21
May 19, 2009 28.89
May 29, 1995 28.84
Nov 23, 1985 28.58

Data provided by the National Weather Service.