Rivers in Illinois
Spoon River (W-IL) at London Mills
Below flood stage
4.69ftStage
Observed Wed, Sep 23, 2:45 AM CDT
- Flood stage
- 15.00 ft
- Record crest
- 28.03 ft1974
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 24.00 ft |
| Moderate flood | 21.00 ft |
| Minor flood | 15.00 ft |
| Action | 13.00 ft |
- 27.70 ftLondon Mills levee overtops.
- 24.00 ftIllinois Route 116 is inundated.
- 15.00 ftMinor flooding begins to agricultural land near the river.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | 39% |
| Moderate flooding | 12% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 28, 2026.
Crest history
258 crests on NOAA’s list since 1943.
| # | Date | Stage |
|---|---|---|
| 1 | June 23, 1974 | 28.03 ft |
| 2 | April 19, 2013 | 26.18 ft |
| 3 | July 25, 1993 | 25.92 ft |
| 4 | May 16, 2009 | 25.28 ft |
| 5 | March 4, 1985 | 25.15 ft |
| 6 | May 16, 1970 | 25.01 ft |
| 7 | October 4, 1986 | 24.36 ft |
| 8 | May 28, 1996 | 24.21 ft |
| 9 | June 3, 1980 | 24.14 ft |
| 10 | July 22, 1951 | 23.73 ft |
| 11 | April 3, 1983 | 23.68 ft |
| 12 | May 30, 2013 | 23.49 ft |
| 13 | May 30, 2019 | 23.46 ft |
| 14 | December 3, 1982 | 23.39 ft |
| 15 | May 13, 2002 | 23.29 ft |
| 16 | March 11, 2009 | 23.02 ft |
| 17 | February 22, 2014 | 22.98 ft |
| 18 | July 19, 1982 | 22.87 ft |
| 19 | February 22, 1997 | 22.48 ft |
| 20 | March 20, 1948 | 22.48 ft |
| 21 | February 24, 1985 | 22.45 ft |
| 22 | July 10, 1982 | 22.17 ft |
| 23 | June 2, 1970 | 22.15 ft |
| 24 | May 14, 2010 | 22.12 ft |
| 25 | April 26, 1976 | 21.99 ft |
Most recent crests
- August 16, 2026: 19.15 ft
- June 22, 2026: 17.27 ft
- June 18, 2026: 15.62 ft
- June 12, 2026: 16.55 ft
- April 18, 2026: 14.57 ft
- April 5, 2026: 13.26 ft
- April 28, 2024: 14.99 ft
- April 6, 2022: 15.05 ft
- February 23, 2022: 15.59 ft
- October 25, 2021: 16.92 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the North Central River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.