How high is the Kaskaskia River at Shelbyville, IL right now?

The Kaskaskia River at Shelbyville, IL is currently flowing at 918 cubic feet per second with a gage height of 9.16 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Kaskaskia River at Shelbyville, IL normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 57th percentile compared to the long-term historical record at this gauge.

Is the Kaskaskia River at Shelbyville, IL at flood stage?

No — the gage height is 539.84 feet below the NWS flood-stage threshold of 549.0 feet.

What is the historical median flow for the Kaskaskia River at Shelbyville, IL on June 11?

The long-term median discharge for this date is 743 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 27 to 2,400 cfs.

Where is the Kaskaskia River at Shelbyville, IL stream gauge located?

The Kaskaskia River at Shelbyville, IL stream gauge is operated by the USGS in Shelby County, IL on the Kaskaskia River. USGS site number 05592000 (coordinates 39.4070, -88.7810).

Kaskaskia River at Shelbyville, IL

USGS Site No: 05592000 • Kaskaskia River • Shelby County, IL

Kaskaskia River at Shelbyville, IL on the Kaskaskia River is currently at 918 cfs (Normal — 57th percentile for this date) . Gage height: 9.16 ft.

Reading from 1 week ago

↑ Upstream on Kaskaskia River

Kaskaskia River at Cooks Mills, IL

Downstream on Kaskaskia River ↓

Kaskaskia River Near Cowden, IL

918

CFS Discharge

9.16

Gage Height (ft)

Normal

Flow Condition

Normal

Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile	Label	CFS Threshold	Today's Flow
10th	Very Low threshold	27
25th	Low threshold	212
50th (Median)	Normal (median)	743
75th	High threshold	1,370	Today: 918 cfs
95th	Very High threshold	2,400

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date	Discharge (CFS)	Gage Ht (ft)
May 28, 2026	1,050	9.54
May 27, 2026	1,230	10.06
May 26, 2026	1,340	10.35
May 25, 2026	1,530	10.87
May 24, 2026	1,540	10.90
May 23, 2026	1,550	10.93
May 22, 2026	1,380	10.44
May 21, 2026	923	9.16
May 20, 2026	612	8.28
May 19, 2026	531	8.02
May 18, 2026	879	9.04
May 17, 2026	1,100	9.67
May 16, 2026	1,360	10.41
May 15, 2026	1,540	10.89
Apr 20, 2026	1,330	10.32
Apr 19, 2026	904	9.13
Apr 18, 2026	598	8.26
Apr 17, 2026	559	8.17
Apr 16, 2026	559	8.17
Apr 15, 2026	664	8.45
Apr 14, 2026	977	9.33
Apr 13, 2026	1,290	10.21
Apr 12, 2026	1,520	10.84
Apr 11, 2026	1,690	11.28
Apr 10, 2026	1,720	11.34
Apr 9, 2026	1,830	11.62
Apr 8, 2026	1,990	12.03
Apr 7, 2026	2,010	12.08
Apr 6, 2026	1,900	11.81
Apr 5, 2026	1,730	11.37

Station Information

USGS Site No: 05592000
State: IL
County: Shelby County
Coordinates: 39.4070, -88.7810
Drainage Area: 1,054 mi²
Datum (ft): 529.8
HUC Code: 07140201

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 548.0 ft
Flood Stage: 549.0 ft
Moderate Flood: 557.0 ft
Major Flood: 558.0 ft

Currently 539.84 ft below flood stage.

Recent Extremes

Max discharge: 2,260 cfs

Mar 17, 2026
Min discharge: 20 cfs

Sep 25, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

Robinson Creek Near Shelbyville, IL
6.2 mi · 28 cfs

Normal
Kaskaskia River Near Cowden, IL
12.7 mi · 1,180 cfs

Normal
Whitley Creek Near Allenville, IL
15.2 mi · 39 cfs

High
Kaskaskia River at Cooks Mills, IL
23.1 mi · 254 cfs

Normal
Little Wabash River Near Effingham, IL
23.2 mi · 145 cfs

Normal