Ayers Landing Canoes, Tubes and Kayaks
Illinois River near Ayers Landing Canoes, Tubes and Kayaks
About this river
Illinois River is a 7.2 mile river near Ayers Landing Canoes, Tubes and Kayaks in Illinois. Streamflow is measured at the USGS gauge Illinois River at Marseilles, IL (site 05543500). The National Hydrography Dataset places it at stream order 9. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1920 to 2026
Illinois River typically runs highest in April, at a median 13,600 cfs, and lowest in October, at 5,560 cfs. The highest flow on record for any single day is 103,000 cfs, in 2020.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 7,870 | 5,240 to 12,300 | |
| February | 9,300 | 5,550 to 13,400 | |
| March | 12,800 | 9,100 to 18,500 | |
| April | 13,600 | 9,125 to 20,000 | |
| May | 11,800 | 8,560 to 17,000 | |
| June | 9,980 | 7,285 to 14,550 | |
| July | 7,900 | 6,000 to 10,600 | |
| August | 6,450 | 5,240 to 9,170 | |
| September | 5,655 | 4,585 to 9,255 | |
| October | 5,560 | 4,150 to 9,460 | |
| November | 6,585 | 4,555 to 10,300 | |
| December | 8,040 | 5,150 to 11,400 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 106 years of record. Statistics published by the US Geological Survey for Illinois River at Marseilles, IL (site 05543500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
3 mapped launches sit in the mapped area of Illinois River. Ramp data comes from the USGS national boat-ramp inventory.
- Illini State Park - Mallard BayIllinois RiverPublic
- Snug Harbor MarinaIllinois RiverPublic
- Heritage Harbor MarinaIllinois RIverRestricted
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Illinois River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
See every free widget you can put on your site, including live conditions and a 7 day forecast.
