How high is the Flag Creek Near Willow Springs, IL right now?

The Flag Creek Near Willow Springs, IL is currently flowing at 12 cubic feet per second with a gage height of 3.22 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Flag Creek Near Willow Springs, 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.

Is the Flag Creek Near Willow Springs, IL at flood stage?

No — the gage height is 6.78 feet below the NWS flood-stage threshold of 10.0 feet.

What is the historical median flow for the Flag Creek Near Willow Springs, IL on June 11?

The long-term median discharge for this date is 17 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 7 to 147 cfs.

Where is the Flag Creek Near Willow Springs, IL stream gauge located?

The Flag Creek Near Willow Springs, IL stream gauge is operated by the USGS in Cook County, IL on the Flag Creek. USGS site number 05533000 (coordinates 41.7389, -87.8969).

Flag Creek Near Willow Springs, IL

USGS Site No: 05533000 • Flag Creek • Cook County, IL

Flag Creek Near Willow Springs, IL on the Flag Creek is currently at 12 cfs (Normal — 34th percentile for this date) . Gage height: 3.22 ft.

Reading from 1 week ago

CFS Discharge

3.22

Gage Height (ft)

Normal

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	7
25th	Low threshold	10
50th (Median)	Normal (median)	17	Today: 12 cfs
75th	High threshold	33
95th	Very High threshold	147

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	13	3.22
May 27, 2026	14	3.27
May 26, 2026	17	3.32
May 25, 2026	24	3.44
May 24, 2026	74	3.90
May 23, 2026	12	3.22
May 22, 2026	12	3.21
May 21, 2026	13	3.23
May 20, 2026	14	3.25
May 19, 2026	17	3.31
May 18, 2026	27	3.43
May 17, 2026	14	3.25
May 16, 2026	14	3.26
May 15, 2026	15	3.27
Apr 20, 2026	42	3.67
Apr 19, 2026	62	3.86
Apr 18, 2026	153	4.64
Apr 17, 2026	55	3.78
Apr 16, 2026	66	3.89
Apr 15, 2026	73	3.95
Apr 14, 2026	30	3.52
Apr 13, 2026	35	3.59
Apr 12, 2026	25	3.46
Apr 11, 2026	30	3.53
Apr 10, 2026	49	3.73
Apr 9, 2026	27	3.48
Apr 8, 2026	35	3.59
Apr 7, 2026	43	3.68
Apr 6, 2026	65	3.88
Apr 5, 2026	104	4.22

Station Information

USGS Site No: 05533000
State: IL
County: Cook County
Coordinates: 41.7389, -87.8969
Drainage Area: 17 mi²
Datum (ft): 606.0
HUC Code: 07120004

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 9.0 ft
Flood Stage: 10.0 ft
Moderate Flood: 12.0 ft
Major Flood: 13.0 ft

Currently 6.78 ft below flood stage.

Recent Extremes

Max discharge: 433 cfs

Aug 19, 2025
Min discharge: 10 cfs

Jun 3, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

Sawmill Creek Near Lemont, IL
4.0 mi · 1 cfs

Low
Chicago Sanitary And Ship Canal near Lemont, IL
4.8 mi · 1,300 cfs

Very Low
Stony Creek (west) Near Worth, IL
4.9 mi · 6 cfs

Normal
Salt Creek at Western Springs, IL
6.0 mi · 66 cfs

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Des Plaines River at Riverside, IL
6.9 mi · 263 cfs

Normal