Kaskaskia River at Carlyle, IL

The last 7 days and the forecast

NWS forecast issued Sun, Dec 31, 6 PM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

What floods at each level

From the National Weather Service, highest first.

• 32.79 ftHeimann levee is overtopped.
• 31.8 ftSanta Fe, Hanover, and Germantown levees begin overtopping near this height.
• 26.8 ftResidential flooding in Bartelso begins and backwater begins to flood Germantown sanitary sewage facilities.
• 23.6 ftNear this height, wastewater treatmeant ponds along the left bank are threatened by floodwaters.
• 21.3 ftCabins on the left bank below the gage begin flooding.
• 20.3 ftTownship roads downstream in Covington begin flooding near this height.
• 18.5 ftNear this level, the Corps will call partners to alert them to these elevated flows anticipated at or above 5000 cfs.
• 17.8 ftNear this height, the left bank below the dam near the tailwater gage begins flooding. Minor flooding of park grounds begins.
• 16.5 ftNear this height, downstream agricultural fields begin flooding.

Highest crests on record

1. 33.69 ft — May 21, 1943
2. 31.17 ft — January 7, 1950
3. 31.12 ft — May 10, 1961
4. 30.8 ft — May 9, 1908
5. 30.56 ft — July 2, 1957

Recent crests: 20.48 ft (March 16, 2026) · 22.9 ft (April 19, 2025) · 17.09 ft (July 30, 2024) · 17.44 ft (April 15, 2024) · 21.4 ft (February 3, 2024)

Up and down the river, and nearby

• UpstreamKaskaskia River at Vandalia, IL
• DownstreamKaskaskia River at New Athens, IL
• Silver Creek near Mascoutah, IL
• Rayse Creek above Waltonville, IL
• Casey Fork above Mount Vernon, IL
• Mississippi River at St. Louis, MO
• Skillet Fork River at Wayne City, IL
• Mississippi River at Alton, IL