Illinois lake levels today: Illinois lakes

0 of 1 Illinois lakes are below full pool today. Lake Shelbyville is the lowest for the date, .

Data as of November 4, 2026. Pictured: Lake Shelbyville.

Illinois at a glance

1 Illinois lakes trackedFederal reservoirs and lakes with a live agency gauge.
0 Below full poolOut of 1 with a published full pool; 1 are at or above it.
1 Lower than usual for the dateOut of 1 with five or more years of history; 0 are higher than usual.
0 Lower than a year agoOut of 1 lakes with a reading from the same date last year.

Every Illinois lake, lowest first

1 of 1 lakes are lower than usual for early November, measured against each lake's own past years on today's date.

Select a column heading to sort the table. Each lake links to its own page with a 12-month chart and the dock check.

Illinois lake levels. Select a column heading to sort.

Lake Shelbyville	599.25	98.5%	24th pct	−0.28	+1.88

Illinois lake questions

Which Illinois lake is the fullest right now?

Lake Shelbyville: at full pool, holding 98.5% of its conservation storage.

Which Illinois lake is the lowest?

Measured against full pool, Lake Shelbyville (at full pool). Measured against its own normal for the date, Lake Shelbyville (lower than usual).

How is this ranking made?

Lakes that publish storage are ranked by percent of conservation storage. The rest are placed by their distance from full pool. Natural lakes without a full pool sit at the end, compared only with their normal for the date.