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River report

Iroquois River Flow Today

As of October 25, 2026 at 12:45 AM, the Iroquois River is flowing at 200 cfs near Chebanse, IL — 78% of normal for the date and down 3% in 24 hours. 4 of 4 USGS gauges reported in the last 3 days; flows range from 61 to 200 cfs. ❤ Favorite

USGS gauges
4 4 reporting · upstream → down
Iroquois River At Rensselaer: 118% of normalIroquois River Near Foresman: 79% of normalIroquois River At Iroquois: 78% of normalIroquois River Near Chebanse: 78% of normal
Typical gauge
78% of normal for the date
0%normal200%
Biggest flow now
200cfs Chebanse
Updated
Oct 25, 12:45 AM
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River briefing · Oct 25, 2026

Iroquois River conditions today

Where the river is running versus normal, what’s rising or dropping, and what it means for a trip — built from the live USGS readings below.

At Chebanse, the Iroquois River is running 200 cfs — 78% of normal, down 3% since yesterday. Along the river, 3 of 4 reporting gauges are below normal (the typical gauge is at 78% of normal).

Highest against normal: Rensselaer at 118%. Lowest: Chebanse at 78%.

Headwaters to mouth

How the Iroquois River compares to normal

Every reporting gauge from the top of the river to the bottom: bar length is today’s flow, colour is percent of normal for the date.

Flow along the river, upstream to downstream

  1. Rensselaer656 ft 61 cfs118%
  2. Foresman653 ft 85 cfs79%
  3. Iroquois638 ft 92 cfs78%
  4. Chebanse600 ft 200 cfs78%

Bar length uses a square-root scale so small headwater flows stay visible next to big downstream ones. Colour: <50% 50–90 90–110 110–150 150%+ of normal.

Where every gauge sits

One dot per Iroquois River streamgauge, placed by its own percent of normal. The line is the typical gauge (78%).

Typical gauge 78%
0%50%100% · normal150%200%+
Much below normal0Below normal3Near normal0Above normal1Much above normal0

Iroquois River flow report

4 gauges
Streamgage Streamflow % of normal 24h Gage height To flood stage Elevation
Iroquois River At Rensselaer IN
Oct 25, 3:30 AM · USGS 05522500
61 cfs 118% -5% 3.93 ft 8.1 ft below 656 ft
Iroquois River Near Foresman IN
Oct 25, 2:45 AM · USGS 05524500
85 cfs 79% -7% 5.09 ft 12.9 ft below 653 ft
Iroquois River At Iroquois IL
Oct 25, 1:00 AM · USGS 05525000
92 cfs 78% -2% 5.25 ft 12.8 ft below 638 ft
Iroquois River Near Chebanse IL
Oct 25, 12:45 AM · USGS 05526000
200 cfs 78% -3% 2.78 ft 13.2 ft below 600 ft

USGS provisional data. Readings are in each gauge’s local time; gauges silent for more than 3 days are marked “Last reported”. Tap any gauge for its hydrograph, forecast and history.

History

Iroquois River streamflow over time

Daily total flow across every monitored gauge on the river.

Maximum streamflow by year

About this river

Iroquois River

The Iroquois River is a 103-mile-long river that runs through northeastern Illinois and northwestern Indiana, eventually flowing into the Kankakee River. The river was named after the Iroquois people who once inhabited the region. The river has been historically important for transportation and agriculture, with several small towns and farms located along its banks. The river is also known for its hydrological properties, with several reservoirs and dams located along its course, including the Langham Creek Dam and the Sugar Creek Dam. These dams provide important flood control measures and irrigation for local agricultural operations. The river is also a popular spot for recreational activities such as fishing and boating, with several public parks and boat launches available for visitors.

Around the river

Fishing near the Iroquois River

FAQ

About the Iroquois River

How is the Iroquois River flowing right now?

As of October 25, 2026, the Iroquois River is flowing at 200 cfs near Chebanse, IL, about 78% of normal for the date. Across its 4 USGS gauges, current flows range from 61 to 200 cfs. Every gauge’s live reading is in the table above.

Is the Iroquois River running high or low?

The typical gauge on the Iroquois River is at 78% of normal for the date. Above 100% means higher than the historical average for this calendar day; below 100% means lower. The profile above shows which reaches are high or low.

What is flood stage on the Iroquois River?

The National Weather Service sets flood stages for Rensselaer (12.0 ft), Foresman (18.0 ft), Iroquois (18.0 ft), Chebanse (16.0 ft). The table shows how far each gauge is below its flood stage right now.

Where does the data come from?

Discharge and gage height are from the USGS National Water Information System; flood stages from the National Weather Service. The history chart sums every monitored gauge on the river.

Can I get alerts for a gauge?

Yes — open any gauge from the table, favorite it in the Snoflo app and set a flow threshold.

More river levels

Rivers in Indiana & Illinois