Mackinaw River Near Green Valley, IL
USGS Site No: 05568000 • Mackinaw River • Tazewell County, IL
Mackinaw River Near Green Valley, IL on the Mackinaw River is currently at 378 cfs (Normal — 34th percentile for this date) . Gage height: 14.22 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 | 157 | |
| 25th | Low threshold | 283 | |
| 50th (Median) | Normal (median) | 540 | Today: 378 cfs |
| 75th | High threshold | 1,060 | |
| 95th | Very High threshold | 2,510 |
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 | 428 | 14.34 |
| May 27, 2026 | 486 | 14.48 |
| May 26, 2026 | 563 | 14.65 |
| May 25, 2026 | 683 | 14.90 |
| May 24, 2026 | 485 | 14.45 |
| May 23, 2026 | 347 | 14.14 |
| May 22, 2026 | 353 | 14.16 |
| May 21, 2026 | 374 | 14.21 |
| May 20, 2026 | 411 | 14.30 |
| May 19, 2026 | 453 | 14.40 |
| May 18, 2026 | 423 | 14.33 |
| May 17, 2026 | 430 | 14.35 |
| May 16, 2026 | 438 | 14.37 |
| May 15, 2026 | 438 | 14.37 |
| Apr 20, 2026 | 1,390 | 16.16 |
| Apr 19, 2026 | 1,390 | 16.16 |
| Apr 18, 2026 | 895 | 15.31 |
| Apr 17, 2026 | 597 | 14.73 |
| Apr 16, 2026 | 611 | 14.76 |
| Apr 15, 2026 | 624 | 14.78 |
| Apr 14, 2026 | 660 | 14.86 |
| Apr 13, 2026 | 717 | 14.97 |
| Apr 12, 2026 | 785 | 15.11 |
| Apr 11, 2026 | 906 | 15.34 |
| Apr 10, 2026 | 1,100 | 15.68 |
| Apr 9, 2026 | 1,360 | 16.11 |
| Apr 8, 2026 | 1,750 | 16.71 |
| Apr 7, 2026 | 2,360 | 17.57 |
| Apr 6, 2026 | 3,900 | 19.41 |
| Apr 5, 2026 | 7,310 | 22.77 |
Station Information
- USGS Site No
- 05568000
- State
- IL
- County
- Tazewell County
- Coordinates
- 40.4547, -89.6062
- Drainage Area
- 1,073 mi²
- Datum (ft)
- 476.7
- HUC Code
- 07130004
Recent Extremes
- Max discharge
-
7,310 cfsApr 5, 2026
- Min discharge
-
25 cfsOct 2, 2025
Computed from the local daily-values archive.
Nearby Gauges
-
Illinois River at Kingston Mines, ILNormal11.3 mi · 10,300 cfs
-
Farm Creek at Farmdale, ILLow15.6 mi · 6 cfs
-
Kickapoo Creek at Peoria, ILUnknown15.9 mi
-
Fondulac Creek Near East Peoria, ILNormal15.9 mi · 0 cfs
-
Mackinaw River Near Congerville, ILNormal22.4 mi · 287 cfs