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Green River near Geneseo water level

River gauge, Green River, Illinois, United States

Directions

Right now

High for mid-October

Water level

5.01ft Down 0.17 ft over the last 24 hours

Flow
1,020 cfs
0 10 20 Highest onrecord 21.59 ft Minor floodstage 15.00 ft

History

History
24ftOct 12Oct 13Oct 15Oct 16Oct 1824ftOct 12Oct 15Oct 18
-051015ftSep 19Sep 26Oct 3Oct 11Oct 18Minor flood stage-051015ftSep 19Oct 3Oct 18Minor flood stage
-051015ftOct 2025Jan 2026Apr 2026Jul 2026Oct 2026Minor flood stage-051015ftOct 2025Apr 2026Oct 2026Minor flood stage
-0510ftJanMarMayJulSepNov2026-0510ftJanAprJulOct2026

20252026

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

What this means

The Green River near Geneseo is above normal at 5.01 ft.

The median for mid-October is 3.21 ft, based on 33 years of readings, so the river stage is 1.80 ft above typical. It is 9.99 ft below the flood stage of 15.00 ft. On the same day last year the reading was 1.85 ft, a difference of +3.16 ft.

It has dropped 0.17 ft over the past 24 hours. In the last month it has stayed between 3.95 ft and 12.49 ft.

That stands out in fall, when many rivers are usually near their lowest.

Compared with 33 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
3.21 ft1.80 ft above the median for this date
Normal for this date
1.69 ft – 5.35 ft8 years in 10 fall in this range (33 years of records)
Same day last year
1.85 ft+3.16 ft
Lowest and highest in 30 days
3.95 ft – 12.49 ft
Lowest and highest in 12 months
1.85 ft – 12.69 ft
Highest on record
21.59 ftJanuary 23, 1969

Floating and fishing near Green River near Geneseo

Experienced paddlers may enjoy higher water, but many outfitters stop rentals once a river runs this high.

Flood stage here is 15.00 ft, 9.99 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.

What happens at each level

24.00 ft
Water reaches the bottom of the Grange Road bridge deck.
19.30 ft
Water reaches the bottom of the Illinois Highway 82 bridge deck in Geneseo.
18.00 ft
Water inundates 10th Avenue in south Colona. Water affects levees downstream of Illinois Highway 84.
15.50 ft
Water affects Illinois Highway 84 north of U.S. Highway 6 in the Colona area.
14.50 ft
Water affects some roads around south Colona.
5.01 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: 13 %.

RankLevelDate
121.59 ftJanuary 23, 1969
219.38 ftMay 30, 2011
318.77 ftOctober 18, 1998
418.48 ftJuly 1, 2014
518.32 ftDecember 27, 2008
617.93 ftJune 5, 2002
717.90 ftMay 30, 2019
817.86 ftMarch 9, 2009
917.59 ftSeptember 14, 2008
1016.73 ftMay 13, 2010

Weather at the gauge

The forecast is not available right now.

Sunrise 07:16 AM Sunset 06:16 PM Daylight 11 hr First quarter 49%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Rock River near JoslinRiver gauge, Rock River 7.31 ft High −0.11 ft 4.9 mi
Crow Creek at BettendorfRiver gauge, Crow Creek 3.51 ft Low ±0 16 mi
Mississippi River at ClintonRiver gauge, Mississippi River 9.34 ft Below flood stage −0.02 ft 21 mi
Mill Creek at MilanRiver gauge, Mill Creek 2.27 ft High +0.07 ft 21 mi
Wapsipinicon River near De WittRiver gauge, Wapsipinicon River 8.73 ft Below flood stage −0.04 ft 27 mi
Mississippi River at Dam 13 near FultonRiver gauge, Mississippi River 4.74 ft Below flood stage ±0 28 mi
Rock River at ComoRiver gauge, Rock River 5.20 ft Below flood stage −0.08 ft 29 mi
Rock River above Sinnissippi Dam at Rock FallsRiver gauge, Rock River 6.69 ft Very high −0.03 ft 32 mi

Questions and answers

Is the Green River near Geneseo higher than last year?

Yes, it is 3.16 ft higher than on the same day last year, when the reading was 1.85 ft.

What is flood stage for the Green River near Geneseo?

The official flood stage is 15.00 ft. The level is currently 9.99 ft below it.

What is a normal level for the Green River near Geneseo in mid-October?

The median for mid-October is 3.21 ft. In 8 years out of 10 the reading falls between 1.69 ft and 5.35 ft, based on 33 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 Green River near Geneseo today?

On Oct 18, 2026, 06:30 AM CDT, the water level was 5.01 ft. Down 0.17 ft over the last 24 hours.

Is Green River near Geneseo rising or falling?

Down 0.17 ft over the last 24 hours. Down 0.19 ft over the last 7 days.

Is the level of Green River near Geneseo normal?

High for mid-October. Compared with 33 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:05447500 (Agency page)
Coordinates
41.48893, -90.15801 (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 5.01 ft 2026-10-18 11:30 Provisional
Flow 1,020 cfs 2026-10-18 11:30 Provisional

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How to cite

U.S. Geological Survey: Green River near Geneseo (usgs:05447500). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/illinois/green-river-near-geneseo

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.