Skokie River at Lake Forest, IL

USGS Site No: 05535000Skokie River • Lake County, IL

Skokie River at Lake Forest, IL on the Skokie River is currently at 1 cfs (Very Low — 9th percentile for this date) . Gage height: 1.85 ft.

Reading from

1
CFS Discharge
1.85
Gage Height (ft)
Very Low
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 1 Today: 1 cfs
25th Low threshold 3
50th (Median) Normal (median) 6
75th High threshold 17
95th Very High threshold 106

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.

167 84 0 cfs Apr 2 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 1 1.89
May 27, 2026 2 1.95
May 26, 2026 5 2.07
May 25, 2026 10 2.20
May 24, 2026 14 2.24
May 23, 2026 2 1.91
May 20, 2026 3 1.96
May 18, 2026 8 2.15
May 17, 2026 7 2.12
May 16, 2026 7 2.11
May 15, 2026 4 2.02
Apr 20, 2026 56 2.79
Apr 19, 2026 79 3.03
Apr 18, 2026 145 3.64
Apr 17, 2026 83 3.06
Apr 16, 2026 107 3.29
Apr 15, 2026 132 3.52
Apr 14, 2026 28 2.49
Apr 13, 2026 15 2.31
Apr 12, 2026 11 2.24
Apr 11, 2026 15 2.31
Apr 10, 2026 21 2.40
Apr 9, 2026 10 2.21
Apr 8, 2026 12 2.26
Apr 7, 2026 16 2.32
Apr 6, 2026 28 2.49
Apr 5, 2026 57 2.80
Apr 4, 2026 74 2.98
Apr 3, 2026 86 3.09
Apr 2, 2026 84 3.08

Station Information

USGS Site No
05535000
State
IL
County
Lake County
Coordinates
42.2325, -87.8453
Drainage Area
13 mi²
Datum (ft)
648.5
HUC Code
07120003
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
4.0 ft
Flood Stage
6.0 ft
Moderate Flood
8.5 ft
Major Flood
10.5 ft

Currently 4.15 ft below flood stage.

Recent Extremes

Max discharge
145 cfs
Apr 18, 2026
Min discharge
0 cfs
Sep 7, 2025
Days at flood stage
0

Computed from the local daily-values archive.

Nearby Gauges