Skokie River at Lake Forest, IL
USGS Site No: 05535000 • Skokie 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
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.
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
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 cfsApr 18, 2026
- Min discharge
-
0 cfsSep 7, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Des Plaines River at Lincolnshire, ILLow4.4 mi · 121 cfs
-
Skokie River Near Highland Park, ILVery Low5.6 mi · 1 cfs
-
North Branch Chicago River at Deerfield, ILNormal5.7 mi · 3 cfs
-
Wf Of Nb Chicago River at Northbrook ILNormal6.5 mi · 5 cfs
-
Buffalo Creek Near Wheeling, ILNormal8.0 mi · 8 cfs