Cache River at Forman, IL

USGS Site No: 03612000 • Cache River • Johnson County, IL

Cache River at Forman, IL on the Cache River is currently at 3 cfs (Very Low — 5th percentile for this date) . Gage height: 8.79 ft.

Reading from

3
CFS Discharge
8.79
Gage Height (ft)
Very Low
Flow Condition
N/A
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 6 Today: 3 cfs
25th Low threshold 11
50th (Median) Normal (median) 53
75th High threshold 246
95th Very High threshold 1,020

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.

3.9k 2k 0 cfs Apr 5 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 6 8.99
May 27, 2026 8 9.14
May 26, 2026 17 9.44
May 25, 2026 16 9.36
May 24, 2026 8 9.12
May 23, 2026 11 9.27
May 22, 2026 20 9.56
May 21, 2026 55 10.21
May 20, 2026 80 10.56
May 19, 2026 16 9.36
May 18, 2026 2 8.62
May 17, 2026 2 8.63
May 16, 2026 2 8.65
May 15, 2026 2 8.72
Apr 20, 2026 18 9.49
Apr 19, 2026 13 9.31
Apr 18, 2026 9 9.17
Apr 17, 2026 9 9.16
Apr 16, 2026 10 9.22
Apr 15, 2026 13 9.31
Apr 14, 2026 15 9.41
Apr 13, 2026 18 9.49
Apr 12, 2026 20 9.56
Apr 11, 2026 23 9.62
Apr 10, 2026 28 9.74
Apr 9, 2026 37 9.92
Apr 8, 2026 54 10.23
Apr 7, 2026 104 10.89
Apr 6, 2026 184 11.70
Apr 5, 2026 210 11.91

Station Information

USGS Site No
03612000
State
IL
County
Johnson County
Coordinates
37.3350, -88.9253
Drainage Area
244 mi²
Datum (ft)
307.7
HUC Code
05140206
View on USGS NWIS →

Recent Extremes

Max discharge
4,690 cfs
Mar 8, 2026
Min discharge
1 cfs
Sep 21, 2025

Computed from the local daily-values archive.

Nearby Gauges

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