How high is the Rock River at Fort Atkinson, WI right now?

The Rock River at Fort Atkinson, WI is currently flowing at 1,710 cubic feet per second with a gage height of 11.82 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Rock River at Fort Atkinson, WI normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 36th percentile compared to the long-term historical record at this gauge.

Is the Rock River at Fort Atkinson, WI at flood stage?

No — the gage height is 4.18 feet below the NWS flood-stage threshold of 16.0 feet.

What is the historical median flow for the Rock River at Fort Atkinson, WI on June 11?

The long-term median discharge for this date is 2,100 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 476 to 10,900 cfs.

Where is the Rock River at Fort Atkinson, WI stream gauge located?

The Rock River at Fort Atkinson, WI stream gauge is operated by the USGS in Jefferson County, WI on the Rock River. USGS site number 05427085 (coordinates 42.9290, -88.8395).

Rock River at Fort Atkinson, WI

USGS Site No: 05427085 • Rock River • Jefferson County, WI

Rock River at Fort Atkinson, WI on the Rock River is currently at 1,710 cfs (Normal — 36th percentile for this date) . Gage height: 11.82 ft.

Reading from 1 week ago

↑ Upstream on Rock River

Rock River at Jefferson, WI

Downstream on Rock River ↓

Rock River at Newville, WI

1,710

CFS Discharge

11.82

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	476
25th	Low threshold	1,400
50th (Median)	Normal (median)	2,100	Today: 1,710 cfs
75th	High threshold	2,720
95th	Very High threshold	10,900

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	1,950	—
May 27, 2026	2,050	—
May 26, 2026	2,120	—
May 25, 2026	2,210	—
May 24, 2026	2,290	—
May 23, 2026	2,330	—
May 22, 2026	2,420	—
May 21, 2026	2,470	—
May 20, 2026	2,550	—
May 19, 2026	2,530	—
May 18, 2026	2,560	—
May 17, 2026	2,660	—
May 16, 2026	2,710	—
May 15, 2026	2,730	—
Apr 20, 2026	9,760	—
Apr 19, 2026	10,100	—
Apr 18, 2026	9,620	—
Apr 17, 2026	8,870	—
Apr 16, 2026	8,130	—
Apr 15, 2026	6,310	—
Apr 14, 2026	4,930	—
Apr 13, 2026	4,470	—
Apr 12, 2026	4,140	—
Apr 11, 2026	4,050	—
Apr 10, 2026	4,000	—
Apr 9, 2026	3,940	—
Apr 8, 2026	3,930	—
Apr 7, 2026	4,130	—
Apr 6, 2026	4,080	—
Apr 5, 2026	3,810	—

Station Information

USGS Site No: 05427085
State: WI
County: Jefferson County
Coordinates: 42.9290, -88.8395
Drainage Area: 2,240 mi²
Datum (ft): 765.2
HUC Code: 07090002

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 14.5 ft
Flood Stage: 16.0 ft
Moderate Flood: 17.0 ft
Major Flood: 18.0 ft

Currently 4.18 ft below flood stage.

Recent Extremes

Max discharge: 10,100 cfs

Apr 19, 2026
Min discharge: 476 cfs

Nov 11, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

Rock River at Jefferson, WI
4.9 mi · 373 cfs

Normal
Crawfish River at Milford, WI
11.8 mi · 468 cfs

Normal
Rock River at Watertown, WI
18.8 mi · 734 cfs

Normal
Rock River Near Lebanon, WI
26.6 mi · 520 cfs

Very High
Rock River at Rockton, IL
35.1 mi · 4,690 cfs

Normal