Lake Levels USA tracks 3 lakes and reservoirs in Illinois using U.S. Army Corps of Engineers (CWMS Data API). Of the 3 with a current 7-day trend, 0 rose and 3 fell by more than 0.05 ft. Latest data: Oct 25, 2026. Elevations from different gauges use different datums, so compare each lake with its own history, not with other lakes.
All Illinois lakes
Carlyle LakeUSACE444.62 ft−0.06 ftLake ShelbyvilleUSACE599.14 ft−0.07 ftRend LakeUSACE403.29 ft−0.22 ft
Other states
AKME3WI12VT5NHWA34ID21MT19ND13MNIL3MI11NY26MA6OR52NV8WY19SD8IAIN11OH21PA28NJ8CTRICA41UT31CO37NE12MO8KY13WV5VA4MD5DE2AZ4NM15KS18AR5TN3NC17SC15DCOK11LA8MS2AL1GA9HITX128FL8PR
Number = lakes with a gauge on this site. Grey = none yet.