How high is the Mackinaw River Near Green Valley, IL right now?

The Mackinaw River Near Green Valley, IL is currently flowing at 378 cubic feet per second with a gage height of 14.22 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Mackinaw River Near Green Valley, IL normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 34th percentile compared to the long-term historical record at this gauge.

What is the historical median flow for the Mackinaw River Near Green Valley, IL on June 11?

The long-term median discharge for this date is 540 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 157 to 2,510 cfs.

Where is the Mackinaw River Near Green Valley, IL stream gauge located?

The Mackinaw River Near Green Valley, IL stream gauge is operated by the USGS in Tazewell County, IL on the Mackinaw River. USGS site number 05568000 (coordinates 40.4547, -89.6062).

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 1 week ago

↑ Upstream on Mackinaw River

Mackinaw River Near Congerville, IL

378

CFS Discharge

14.22

Gage Height (ft)

Normal

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	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.

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

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

View on USGS NWIS →

Recent Extremes

Max discharge: 7,310 cfs

Apr 5, 2026
Min discharge: 25 cfs

Oct 2, 2025

Computed from the local daily-values archive.

Nearby Gauges

Illinois River at Kingston Mines, IL
11.3 mi · 10,300 cfs

Normal
Farm Creek at Farmdale, IL
15.6 mi · 6 cfs

Low
Kickapoo Creek at Peoria, IL
15.9 mi

Unknown
Fondulac Creek Near East Peoria, IL
15.9 mi · 0 cfs

Normal
Mackinaw River Near Congerville, IL
22.4 mi · 287 cfs

Normal