How high is the Kootenai River below Libby Dam near Libby Mount right now?

The Kootenai River below Libby Dam near Libby Mount is currently flowing at 24,900 cubic feet per second with a gage height of 23.71 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Kootenai River below Libby Dam near Libby Mount normal for this time of year?

Current flow is classified as high for June 11. Today's discharge is at the 81th percentile compared to the long-term historical record at this gauge.

Is the Kootenai River below Libby Dam near Libby Mount at flood stage?

No — the gage height is 3.79 feet below the NWS flood-stage threshold of 27.5 feet.

What is the historical median flow for the Kootenai River below Libby Dam near Libby Mount on June 11?

The long-term median discharge for this date is 15,300 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 3,040 to 31,600 cfs.

Where is the Kootenai River below Libby Dam near Libby Mount stream gauge located?

The Kootenai River below Libby Dam near Libby Mount stream gauge is operated by the USGS in Lincoln County, MT on the Kootenai River. USGS site number 12301933 (coordinates 48.4007, -115.3187).

Kootenai River below Libby Dam near Libby Mount

USGS Site No: 12301933 • Kootenai River • Lincoln County, MT

Kootenai River below Libby Dam near Libby Mount on the Kootenai River is currently at 24,900 cfs (High — 81th percentile for this date) . Gage height: 23.71 ft.

Reading from 1 week ago

24,900

CFS Discharge

23.71

Gage Height (ft)

High

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	3,040
25th	Low threshold	5,170
50th (Median)	Normal (median)	15,300
75th	High threshold	21,700
95th	Very High threshold	31,600	Today: 24,900 cfs

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	24,700	—
May 27, 2026	24,600	—
May 26, 2026	25,200	—
May 25, 2026	11,400	—
May 24, 2026	9,960	—
May 23, 2026	9,990	—
May 22, 2026	9,990	—
May 21, 2026	10,000	—
May 20, 2026	10,100	—
May 19, 2026	10,100	—
May 18, 2026	10,100	—
May 17, 2026	10,200	—
May 16, 2026	10,100	—
May 15, 2026	10,100	—
Apr 20, 2026	19,400	—
Apr 19, 2026	19,500	—
Apr 18, 2026	19,400	—
Apr 17, 2026	19,500	—
Apr 16, 2026	19,400	—
Apr 15, 2026	19,500	—
Apr 14, 2026	19,500	—
Apr 13, 2026	19,500	—
Apr 12, 2026	19,500	—
Apr 11, 2026	19,500	—
Apr 10, 2026	19,500	—
Apr 9, 2026	19,600	—
Apr 8, 2026	19,700	—
Apr 7, 2026	19,700	—
Apr 6, 2026	19,700	—
Apr 5, 2026	19,800	—

Station Information

USGS Site No: 12301933
State: MT
County: Lincoln County
Coordinates: 48.4007, -115.3187
Drainage Area: 8,999 mi²
Datum (ft): 2,100.0
HUC Code: 17010101

View on USGS NWIS →

Flood Stage Thresholds

Flood Stage: 27.5 ft

Currently 3.79 ft below flood stage.

Recent Extremes

Max discharge: 26,600 cfs

Jan 16, 2026
Min discharge: 4,200 cfs

Feb 9, 2026
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

Fisher River Near Libby Mount
3.1 mi · 597 cfs

Normal
Libby Wetland Site below Schrieber Lake near Libby, Mount
21.0 mi · 1 cfs

Low
Yaak River Near Troy Mount
31.8 mi · 1,770 cfs

Normal
Tobacco River at Eureka, Mount
35.1 mi · 876 cfs

Very High
Clark Fork below Noxon Rapids Dam near Noxon Mount
35.9 mi

Unknown