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Chicago S & South Canal at Western Ave at Chicago water level

River gauge, Chicago S & South Canal, Illinois, United States

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Right now

Very high for late October

Water level

-1.93ft Steady over the last 24 hours

Water temperature
64 °F
-3 0 3 5 Highest onrecord 5.26 ft Minor floodstage 4.00 ft

History

History
-2024ftOct 16Oct 17Oct 18Oct 20Oct 21Minor flood stage-2024ftOct 16Oct 18Oct 21Minor flood stage
-303ftSep 22Sep 29Oct 6Oct 13Oct 21Minor flood stage-303ftSep 22Oct 6Oct 21Minor flood stage
-303ftOct 2025Jan 2026Apr 2026Jul 2026Oct 2026Minor flood stage-303ftOct 2025Apr 2026Oct 2026Minor flood stage
-4-20ftJanMarMayJulSepNov2026-4-20ftJanAprJulOct2026

20252026

Water level Normal range (10–90 %) Minor flood stage

What this means

The Chicago S & South Canal at Western Ave at Chicago is well above normal at −1.93 ft.

That puts it 0.24 ft above the median of −2.17 ft for late October, based on 11 years of readings. It is 5.93 ft below the flood stage of 4.00 ft. A year ago it stood at −1.85 ft (−0.08 ft).

The level has held steady over the past 24 hours. In the last month it has stayed between −3.11 ft and −1.63 ft.

That stands out in fall, when many rivers are usually near their lowest. The sensor also reports a water temperature of 64 °F.

Compared with 11 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
−2.17 ft0.24 ft above the median for this date
Normal for this date
−2.64 ft – −2.02 ft8 years in 10 fall in this range (11 years of records)
Same day last year
−1.85 ft−0.08 ft
Lowest and highest in 30 days
−3.11 ft – −1.63 ft
Lowest and highest in 12 months
−3.69 ft – −1.58 ft
Highest on record
5.26 ftMay 17, 2020

Flood levels and safety

Most flood deaths in the US happen in vehicles. Six inches of fast water can knock an adult off their feet, and a foot or two can float a car. If a road is covered, turn around.

Readings can change quickly after heavy rain upstream, so check again before heading near the water.

What happens at each level

7.00 ft
Structures are threatened near the canal in the Bridgeport, Lower West Side, McKinley Park, and South Lawndale areas of Chicago. Structures are threatened near the South Branch Chicago River along Iron Street in the Bridgeport and McKinley Park areas of Chicago.
6.00 ft
Structures are threatened near Ping Tom Park and in the Armour Square, Near South Side, and Lower West Side areas of Chicago.
4.00 ft
The canal overflows low-lying banks in the Bridgeport, Lower West Side, McKinley Park, and South Lawndale areas of Chicago.
2.00 ft
Low-lying sections of Ping Tom Park are inundated.
−1.93 ft
Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

RankLevelDate
15.26 ftMay 17, 2020
24.10 ftJune 30, 1977
33.62 ftOctober 14, 2017
43.07 ftJune 15, 2015
51.65 ftMay 1, 2019

Weather at the gauge

No rain in the last 3 days.

20 Tue 67° 44° – Wind 8 mph
21 Wed 69° 41° – Wind 5 mph
22 Thu 67° 46° – Wind 6 mph
23 Fri 70° 57° – Wind 6 mph
24 Sat 71° 58° – Wind 9 mph
25 Sun 70° 59° – Wind 8 mph
26 Mon 66° 50° 0.04 in Wind 17 mph

Forecast: Open-Meteo

Sunrise 07:10 AM Sunset 06:02 PM Daylight 10 hr, 51 min Waxing gibbous 75%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Chicago Sanitary and Ship Canal at StickneyRiver gauge, Chicago Sanitary and Ship Canal −1.95 ft Very high +0.08 ft 3.8 mi
Nb Chicago River at Grand Avenue at ChicagoRiver gauge, Nb Chicago River −1.94 ft High −0.06 ft 4.4 mi
Chicago River at Columbus Drive at ChicagoRiver gauge, Chicago River −3.91 ft Very low −1.78 ft 4.8 mi
Lake Michigan at Chicago Lock at ChicagoLake, Lake Michigan 0.47 ft Normal +0.08 ft 5.4 mi
Chicago River at Chicago Lock at ChicagoRiver gauge, Chicago River −1.97 ft Normal +0.09 ft 5.4 mi
Des Plaines River at LyonsRiver gauge, Des Plaines River 10.77 ft Normal −0.11 ft 7 mi
Des Plaines River at RiversideRiver gauge, Des Plaines River 2.47 ft Normal −0.07 ft 7 mi
Des Plaines River at River ForestRiver gauge, Des Plaines River 4.60 ft Normal −0.11 ft 8 mi

Questions and answers

How does the Chicago S & South Canal at Western Ave at Chicago compare with last year?

It is 0.08 ft lower than on the same day last year, when the reading was −1.85 ft.

What is flood stage for the Chicago S & South Canal at Western Ave at Chicago?

The official flood stage is 4.00 ft. The level is currently 5.93 ft below it.

What is a normal level for the Chicago S & South Canal at Western Ave at Chicago in late October?

The median for late October is −2.17 ft. In 8 years out of 10 the reading falls between −2.64 ft and −2.02 ft, based on 11 years of records.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Chicago S & South Canal at Western Ave at Chicago today?

On Oct 21, 2026, 12:30 AM CDT, the water level was −1.93 ft. Steady over the last 24 hours.

Is Chicago S & South Canal at Western Ave at Chicago rising or falling?

Steady over the last 24 hours. Up 0.32 ft over the last 7 days.

Is the level of Chicago S & South Canal at Western Ave at Chicago normal?

Very high for late October. Compared with 11 years of daily readings for this time of year.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Geological Survey
Station code
usgs:05536137 (Agency page)
Coordinates
41.83719, -87.68542 (WGS84)
Vertical datum
NAVD88
Update interval
every 15 minutes
Licence
Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

ParameterLast valueTime (UTC)Quality
Water level −1.93 ft 2026-10-21 05:30 Provisional
Water temperature 64 °F 2026-10-21 05:30 Provisional

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How to cite

U.S. Geological Survey: Chicago S & South Canal at Western Ave at Chicago (usgs:05536137). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/illinois/chicago-s-and-south-canal-at-western-ave-at-chicago

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.