About this river
Cache River is a 38.2 mile river near Cache Bayou Outfitters in Illinois. Streamflow is measured at the USGS gauge Cache River at Forman, IL (site 03612000). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1923 to 2026
Cache River typically runs highest in March, at a median 318 cfs, and lowest in October, at 4.7 cfs. The highest flow on record for any single day is 18,600 cfs, in 2008.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 171 | 48 to 558 | |
| February | 241 | 88 to 719 | |
| March | 318 | 131 to 767 | |
| April | 299 | 93 to 765 | |
| May | 127 | 35 to 611 | |
| June | 41 | 12 to 191 | |
| July | 16 | 5.0 to 60 | |
| August | 8.5 | 3.0 to 32 | |
| September | 4.9 | 1.5 to 20 | |
| October | 4.7 | 1.2 to 21 | |
| November | 21 | 5.0 to 128 | |
| December | 85 | 18 to 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 104 years of record. Statistics published by the US Geological Survey for Cache River at Forman, IL (site 03612000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Cache 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.
