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Mississippi River at Chester water level

River gauge, Mississippi River, Illinois, United States

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Right now

Below flood stage

Water level

12.34ft Down 1.16 ft over the last 24 hours

Flow
189,000 cfs
0 25 50 Highest onrecord 49.74 ft Minor floodstage 27.00 ft Lowest on record -4.30 ft

History

History
581013ftOct 16Oct 20Oct 24Oct 28Nov 1581013ftOct 16Oct 24Nov 1
Water level Forecast Minor flood stage

The forecast expects the river to fall to 5.60 ft by Sunday, November 1 at 06:00 AM. Issued Sunday, October 18 at 11:26 AM by NOAA National Weather Service.

What this means

The Mississippi River at Chester is at 12.34 ft, in the normal range.

It is 14.66 ft below the flood stage of 27.00 ft.

It has dropped 1.16 ft over the past 24 hours. The forecast expects the river to fall to 5.60 ft by Sunday, November 1 at 06:00 AM. In the last month it has stayed between 12.33 ft and 14.13 ft.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record
49.74 ftAugust 7, 1993
Lowest on record
−4.30 ftJanuary 2, 1964
Forecast peak
12.40 ftSunday, October 18 at 01:00 PM

Floating and fishing near Mississippi River at Chester

Normal flows mean predictable rapids and good access at most put-ins.

Flood stage here is 27.00 ft, 14.66 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.

What happens at each level

53.00 ft
Near this height, the Ste. Genevieve County levee #3 is overtopped.
51.00 ft
The Health Care Unit of the Menard Correctional Center begins flooding near this height. Also at this height, the Grand Tower levee is overtopped. This levee protects 14,800 acres.
50.00 ft
Ste. Genevieve, Ft. Chartres, Ivy Landing, and Kaskaskia Island levees overtopped.
49.50 ft
Near this height, the Bois Brule, Degognia, and Fountain Bluff levees are overtopped. The Bois Brule levee protects 26,060 acres. The Degognia and Fountain Bluff levees protect 36,200 acres.
49.40 ft
Stringtown and Prairie DuRocher levees overtopped.
49.00 ft
Degognia and Fountain Bluff Levee overtopped.
47.50 ft
The Ardent Mills Chester Mill begins flooding near this height.
45.50 ft
Near this height, Missouri Route H will be closed in both directions from U.S. Highway 61 to Route M.
45.10 ft
Near this height, Missouri Route M is closed in both directions at River Aux Vases.
45.00 ft
At this height, the Chester waterworks pumphouse floods.
44.00 ft
At this height, Missouri State Highway 51 is closed from Perry County Road 944 to the Illinois State Line at the bridge into Chester.
42.40 ft
Near this height, Missouri Route H is closed between Route M and Missouri Highway 51.
12.34 ft
Right now

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

Highest crests on record

Chance of at least minor flooding in October to December: 21 %.

RankLevelDate
149.74 ftAugust 7, 1993
246.52 ftJune 10, 2019
345.99 ftJanuary 2, 2016
444.66 ftMay 6, 2017
544.00 ftMay 23, 1995
643.32 ftApril 30, 1973
742.41 ftJune 5, 2013
841.02 ftMay 5, 1983
940.58 ftMay 17, 2002
1039.79 ftApril 16, 1979

Weather at the gauge

The forecast is not available right now.

Sunrise 07:11 AM Sunset 06:19 PM Daylight 11 hr, 8 min First quarter 52%

Map

Other gauges on the Mississippi River

Gauge Level Compared with normal 24 hours Distance
Mississippi River at GraftonRiver gauge, Mississippi River 16.15 ft Below flood stage +0.32 ft 81 mi
Mississippi River at St. LouisRiver gauge, Mississippi River 9.58 ft Below flood stage −0.45 ft 54 mi
Mississippi River at Cape GirardeauRiver gauge, Mississippi River 17.90 ft Below flood stage −0.83 ft 45 mi
Mississippi River at ThebesRiver gauge, Mississippi River 17.03 ft Below flood stage −0.79 ft 51 mi
Mississippi River at New MadridRiver gauge, Mississippi River 9.24 ft Below flood stage −1.74 ft 92 mi

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
South Fork Saline Creek near PerryvilleRiver gauge, South Fork Saline Creek 6.6 cfs Very low ±0 13 mi
Kaskaskia River near Red BudRiver gauge, Kaskaskia River 68.62 ft Normal −0.04 ft 20 mi
Kaskaskia River at New AthensRiver gauge, Kaskaskia River 68.63 ft Normal −0.02 ft 29 mi
Big Muddy River at Rte 127 at MurphysboroRiver gauge, Big Muddy River 3.21 ft Very low +0.01 ft 29 mi
Richland Creek near HeckerRiver gauge, Richland Creek 27.17 ft High −0.21 ft 30 mi
Silver Creek near FreeburgRiver gauge, Silver Creek 0.99 ft Normal −0.48 ft 35 mi
Big River below DeslogeRiver gauge, Big River 29.2 cfs Low ±0 37 mi
Kaskaskia River near Venedy StationRiver gauge, Kaskaskia River 1.36 ft Low −0.17 ft 40 mi

Questions and answers

What is flood stage for the Mississippi River at Chester?

The official flood stage is 27.00 ft. The level is currently 14.66 ft below it.

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 Mississippi River at Chester today?

On Oct 18, 2026, 02:30 PM CDT, the water level was 12.34 ft. Down 1.16 ft over the last 24 hours.

Is Mississippi River at Chester rising or falling?

Down 1.16 ft over the last 24 hours.

Is the level of Mississippi River at Chester normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at Mississippi River at Chester?

The highest level on record is 49.74 ft on August 7, 1993. The lowest is −4.30 ft on January 2, 1964.

Is Mississippi River at Chester expected to rise?

The forecast expects the river to fall to 5.60 ft by Sunday, November 1 at 06:00 AM.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Geological Survey
Station code
usgs:07020500 (Agency page)
Coordinates
37.90075, -89.83022 (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 12.34 ft 2026-10-18 19:30 Provisional
Flow 189,000 cfs 2026-10-18 19:30 Provisional

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How to cite

U.S. Geological Survey: Mississippi River at Chester (usgs:07020500). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/illinois/mississippi-river-at-chester

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.