How high is the Missouri River at Sioux City, IA right now?

The Missouri River at Sioux City, IA is currently flowing at 28,400 cubic feet per second with a gage height of 11.25 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Missouri River at Sioux City, IA normal for this time of year?

Current flow is classified as normal for October 28. Today's discharge is at the 30th percentile compared to the long-term historical record at this gauge.

Is the Missouri River at Sioux City, IA at flood stage?

No — the gage height is 18.75 feet below the NWS flood-stage threshold of 30.0 feet.

What is the historical median flow for the Missouri River at Sioux City, IA on October 28?

The long-term median discharge for this date is 32,300 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 14,800 to 64,200 cfs.

Where is the Missouri River at Sioux City, IA stream gauge located?

The Missouri River at Sioux City, IA stream gauge is operated by the USGS in Dakota County, NE on the Missouri River. USGS site number 06486000 (coordinates 42.4862, -96.4131).

Missouri River at Sioux City, IA

USGS Site No: 06486000 • Missouri River • Dakota County, NE

Missouri River at Sioux City, IA on the Missouri River is currently at 28,400 cfs (Normal — 30th percentile for this date) . Gage height: 11.25 ft.

Reading from 4 months ago

↑ Upstream on Missouri River

Missouri River at Yankton, SD

Downstream on Missouri River ↓

Missouri River at Decatur, NE

28,400

CFS Discharge

11.25

Gage Height (ft)

Normal

Flow Condition

Normal

Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for October 28 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	14,800
25th	Low threshold	27,400
50th (Median)	Normal (median)	32,300	Today: 28,400 cfs
75th	High threshold	40,100
95th	Very High threshold	64,200

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	28,800	—
May 27, 2026	28,400	—
May 26, 2026	28,300	—
May 25, 2026	28,000	—
May 24, 2026	27,900	—
May 23, 2026	28,500	—
May 22, 2026	28,400	—
May 21, 2026	27,800	—
May 20, 2026	27,800	—
May 19, 2026	27,700	—
May 18, 2026	27,200	—
May 17, 2026	27,000	—
May 16, 2026	26,000	—
May 15, 2026	26,200	—
Apr 20, 2026	25,900	—
Apr 19, 2026	25,800	—
Apr 18, 2026	26,300	—
Apr 17, 2026	26,300	—
Apr 16, 2026	26,300	—
Apr 15, 2026	26,500	—
Apr 14, 2026	26,700	—
Apr 13, 2026	26,700	—
Apr 12, 2026	26,700	—
Apr 11, 2026	26,400	—
Apr 10, 2026	26,500	—
Apr 9, 2026	26,200	—
Apr 8, 2026	26,200	—
Apr 7, 2026	26,100	—
Apr 6, 2026	25,800	—
Apr 5, 2026	26,200	—

Station Information

USGS Site No: 06486000
State: NE
County: Dakota County
Coordinates: 42.4862, -96.4131
Drainage Area: 314,600 mi²
Datum (ft): 1,057.4
HUC Code: 10230001

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 25.0 ft
Flood Stage: 30.0 ft
Moderate Flood: 33.0 ft
Major Flood: 36.0 ft

Currently 18.75 ft below flood stage.

Recent Extremes

Max discharge: 34,800 cfs

Jun 3, 2025
Min discharge: 8,450 cfs

Dec 30, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

Perry Creek at 38th Street at Sioux City, IA
3.4 mi · 24 cfs

Very High
Big Sioux River at Sioux City, IA
4.3 mi · 0 cfs

Unknown
Floyd River at James, IA
8.1 mi · 861 cfs

Very High
Big Sioux River Near Jefferson, SD
11.0 mi · 1,830 cfs

Normal
Omaha Creek at Homer, Nebr.
12.0 mi · 62 cfs

High