Nivelmap
EN

Kootenai River below Libby Dam near Libby MT water level

River gauge, Kootenai River, Montana, United States

Directions

Right now

Below flood stage

Water level

18.04ft Up 0.18 ft over the last 24 hours

Flow
4,570 cfs
20 25 Highest onrecord 28.50 ft Minor floodstage 27.50 ft

History

History
17.918.0ftOct 16Oct 19Oct 23Oct 26Oct 2917.918.0ftOct 16Oct 23Oct 29
Water level Forecast Minor flood stage

The forecast expects the river to fall to 17.89 ft by Wednesday, October 28 at 05:00 AM. Issued Monday, October 19 at 09:09 AM by NOAA National Weather Service.

What this means

Water levels are unremarkable at Kootenai River below Libby Dam near Libby MT, where the gauge shows 18.04 ft.

It is 9.46 ft below the flood stage of 27.50 ft.

It is on the way up, by 0.18 ft over the past 24 hours. The forecast expects the river to fall to 17.89 ft by Wednesday, October 28 at 05:00 AM. There is still 9.46 ft of room before flood stage. The 30-day range is 17.85 ft – 18.05 ft.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record
28.50 ftJune 18, 2006
Forecast peak
17.97 ftMonday, October 19 at 11:00 PM

Paddling and fishing conditions

Most paddlers and anglers will find the river in good shape at this stage.

For reference, flood stage is 27.50 ft.

What happens at each level

27.50 ft
Some home owners living along the banks of the Kootenai River will have flooding to sections of their property.
18.04 ft
Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

RankLevelDate
128.50 ftJune 18, 2006
227.61 ftJuly 3, 2012
327.50 ftAugust 5, 1974
426.49 ftJune 6, 1981
526.46 ftNovember 29, 1976
626.28 ftJuly 1, 2002
724.15 ftDecember 14, 2017
824.15 ftDecember 17, 2016
923.85 ftDecember 11, 2024

Weather at the gauge

The forecast is not available right now.

Sunrise 07:09 AM Sunset 05:44 PM Daylight 10 hr, 35 min First quarter 67%

Map

Other gauges on the Kootenai River

Gauge Level Compared with normal 24 hours Distance
Kootenai River at LeoniaRiver gauge, Kootenai River 10.53 ft Low +0.19 ft 37 mi
Kootenai River at Bonners FerryRiver gauge, Kootenai River 45.33 ft Low +0.10 ft 50 mi
Kootenai River at PorthillRiver gauge, Kootenai River 43.97 ft Low +0.01 ft 68 mi

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Fisher River near Libby MTRiver gauge, Fisher River 2.76 ft Below flood stage ±0 3.1 mi
Libby Wetland Site below Schrieber Lake near LibbyRiver gauge, Libby Wetland Site 0.6 cfs Normal ±0 21 mi
Yaak River near Troy MTRiver gauge, Yaak River 2.88 ft Below flood stage ±0 32 mi
Tobacco River at EurekaRiver gauge, Tobacco River 79.1 cfs Normal ±0 35 mi
Clark Fork River below Cabinet Gorge DamRiver gauge, Clark Fork River 8,860 cfs Normal +2,970 cfs 41 mi
Lightning Creek at Clark ForkRiver gauge, Lightning Creek 7.77 ft Lowest on record −0.04 ft 43 mi
Kootenai River Bel Moyie River near Bonners FerryRiver gauge, Kootenai River Bel Moyie River 5,220 cfs Normal +260 cfs 45 mi
Moyie River at EastportRiver gauge, Moyie River 3.30 ft Very low −0.01 ft 57 mi

Questions and answers

What is flood stage for the Kootenai River below Libby Dam near Libby MT?

The official flood stage is 27.50 ft. The level is currently 9.46 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Kootenai River below Libby Dam near Libby MT today?

On Oct 20, 2026, 02:00 AM PDT, the water level was 18.04 ft. Up 0.18 ft over the last 24 hours.

Is Kootenai River below Libby Dam near Libby MT rising or falling?

Up 0.18 ft over the last 24 hours.

Is the level of Kootenai River below Libby Dam near Libby MT normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at Kootenai River below Libby Dam near Libby MT?

The highest level on record is 28.50 ft on June 18, 2006.

Is Kootenai River below Libby Dam near Libby MT expected to rise?

The forecast expects the river to fall to 17.89 ft by Wednesday, October 28 at 05:00 AM.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Geological Survey
Station code
usgs:12301933 (Agency page)
Coordinates
48.40066, -115.31872 (WGS84)
Vertical datum
NGVD29
Update interval
every 15 minutes
Licence
Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

ParameterLast valueTime (UTC)Quality
Water level 18.04 ft 2026-10-20 09:00 Provisional
Flow 4,570 cfs 2026-10-20 09:00 Provisional

Download

Embed this gauge

Add a live card for this gauge to your website. It updates on its own and links back here.

How to cite

U.S. Geological Survey: Kootenai River below Libby Dam near Libby MT (usgs:12301933). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/montana/kootenai-river-below-libby-dam-near-libby-mt

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.