How high is the Spring Brook at 87th Street Near Naperville, IL right now?

The Spring Brook at 87th Street Near Naperville, IL is currently flowing at 4 cubic feet per second with a gage height of 2.66 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Spring Brook at 87th Street Near Naperville, IL normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 32th percentile compared to the long-term historical record at this gauge.

What is the historical median flow for the Spring Brook at 87th Street Near Naperville, IL on June 11?

The long-term median discharge for this date is 6 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 0 to 60 cfs.

Where is the Spring Brook at 87th Street Near Naperville, IL stream gauge located?

The Spring Brook at 87th Street Near Naperville, IL stream gauge is operated by the USGS in DuPage County, IL on the Spring Brook. USGS site number 05540275 (coordinates 41.7259, -88.1632).

Spring Brook at 87th Street Near Naperville, IL

USGS Site No: 05540275 • Spring Brook • DuPage County, IL

Spring Brook at 87th Street Near Naperville, IL on the Spring Brook is currently at 4 cfs (Normal — 32th percentile for this date) . Gage height: 2.66 ft. This station is at or above flood stage.

Reading from 1 week ago

CFS Discharge

2.66

Gage Height (ft)

Normal

Flow Condition

FLOOD

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	0
25th	Low threshold	3
50th (Median)	Normal (median)	6	Today: 4 cfs
75th	High threshold	16
95th	Very High threshold	60

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	4	2.68
May 27, 2026	4	2.72
May 26, 2026	6	2.79
May 25, 2026	7	2.86
May 24, 2026	5	2.77
May 23, 2026	4	2.67
May 22, 2026	4	2.71
May 21, 2026	4	2.71
May 20, 2026	5	2.73
May 19, 2026	5	2.77
May 18, 2026	4	2.70
May 17, 2026	4	2.66
May 16, 2026	4	2.67
May 15, 2026	4	2.68
Apr 20, 2026	22	3.48
Apr 19, 2026	29	3.76
Apr 18, 2026	45	4.30
Apr 17, 2026	15	3.17
Apr 16, 2026	18	3.33
Apr 15, 2026	15	3.19
Apr 14, 2026	16	3.24
Apr 13, 2026	19	3.37
Apr 12, 2026	18	3.29
Apr 11, 2026	18	3.32
Apr 10, 2026	22	3.51
Apr 9, 2026	20	3.42
Apr 8, 2026	23	3.55
Apr 7, 2026	27	3.69
Apr 6, 2026	33	3.92
Apr 5, 2026	48	4.37

Station Information

USGS Site No: 05540275
State: IL
County: DuPage County
Coordinates: 41.7259, -88.1632
Drainage Area: 10 mi²
Datum (ft): 646.4
HUC Code: 07120004

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 5.5 ft

Recent Extremes

Max discharge: 151 cfs

Mar 16, 2026
Min discharge: 1 cfs

Aug 11, 2025

Computed from the local daily-values archive.

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Unknown
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Low
Sawmill Creek Near Lemont, IL
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Chicago Sanitary And Ship Canal near Lemont, IL
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Very Low