Clark Fork at St. Regis MT water level

Name: Clark Fork at St. Regis MT water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Clark Fork, Montana, United States

Directions

Below flood stage

Water level

5.43ft Steady over the last 24 hours

Measured Oct 18, 2026, 02:45 PM PDT (1 hour ago)

Flow: 2,900 cfs

History

7 days

Water level Forecast Minor flood stage

The forecast expects the river to rise to 5.54 ft by Sunday, October 25 at 05:00 AM. Issued Sunday, October 18 at 09:22 AM by NOAA National Weather Service.

What this means

Clark Fork at St. Regis MT is at 5.43 ft, in the normal range.

It is 13.57 ft below the flood stage of 19.00 ft.

It has barely moved over the past 24 hours. The forecast expects the river to rise to 5.54 ft by Sunday, October 25 at 05:00 AM. In the last month it has stayed between 5.43 ft and 5.46 ft.

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

Key numbers

Highest on record: 20.27 ftMay 18, 1997
Forecast peak: 5.54 ftSunday, October 25 at 05:00 AM

Floating and fishing near Clark Fork at St. Regis MT

Normal flows mean predictable rapids and good access at most put-ins.

Flood stage here is 19.00 ft, 13.57 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.

What happens at each level

22.00 ft: Flooding affects buildings in the town of St. Regis inundating roads and isolating homes.
21.00 ft: Flooding affects low lying areas adjacent to the confluence of the Clark Fork and St. Regis Rivers.
19.00 ft: Flooding affects low lying areas adjacent to the river.
5.43 ft: Right now

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

Highest crests on record

Chance of at least minor flooding in October to December: < 5 %.

Rank	Level	Date
1	20.27 ft	May 18, 1997
2	19.96 ft	May 24, 1948
3	19.50 ft	June 3, 1972
4	19.39 ft	June 18, 1974
5	19.20 ft	May 30, 1913
6	18.98 ft	May 24, 1956
7	18.90 ft	May 12, 2018
8	18.54 ft	June 10, 1964
9	18.50 ft	May 29, 1917
10	18.21 ft	June 21, 1975

Weather at the gauge

No rain in the last 3 days.

17 Sat 72° 48° – Wind 12 mph

18 Sun 67° 41° – Wind 4 mph

19 Mon 75° 46° – Wind 8 mph

20 Tue 67° 45° – Wind 3 mph

21 Wed 68° 44° 0.00 in Wind 5 mph

22 Thu 67° 47° 0.23 in, 53% Wind 4 mph

23 Fri 61° 47° 0.07 in, 53% Wind 4 mph

Forecast: Open-Meteo

Sunrise 07:04 AM Sunset 05:49 PM Daylight 10 hr, 45 min First quarter 53%

Map

Other gauges on Clark Fork

Gauge	Level	Compared with normal	24 hours	Distance
Clark Fork near Galen MTRiver gauge, Clark Fork	83.2 cfs	Normal	−8.0 cfs	133 mi
Clark Fork at Deer Lodge MTRiver gauge, Clark Fork	2.72 ft	Below flood stage	−0.02 ft	127 mi
Clark Fork above Little Blackfoot R near Garrison MTRiver gauge, Clark Fork	185 cfs	Low	−7.0 cfs	121 mi
Clark Fork at Goldcreek MTRiver gauge, Clark Fork	295 cfs	Low	−9.0 cfs	113 mi
Clark Fork near Drummond MTRiver gauge, Clark Fork	3.13 ft	Below flood stage	−0.02 ft	92 mi
Clark Fork at Turah Bridge near Bonner MTRiver gauge, Clark Fork	855 cfs	Normal	−6.0 cfs	68 mi
Clark Fork above Missoula MTRiver gauge, Clark Fork	2.65 ft	Below flood stage	±0	62 mi
Clark Fork below Missoula MTRiver gauge, Clark Fork	1.25 ft	Below flood stage	−0.01 ft	54 mi
Clark Fork near Plains MTRiver gauge, Clark Fork	4.58 ft	Below flood stage	+0.02 ft	14 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
St. Regis River near St. RegisRiver gauge, St. Regis River	1.71 ft	Below flood stage	±0	1.7 mi
St Joe River at Red Ives Ranger StationRiver gauge, St Joe River	51.9 cfs	Very low	−2.4 cfs	21 mi
Thompson River near Thompson Falls MTRiver gauge, Thompson River	2.74 ft	Below flood stage	±0	21 mi
Prospect Creek at Thompson Falls MTRiver gauge, Prospect Creek	0.40 ft	Below flood stage	±0	23 mi
Flathead River at Perma MTRiver gauge, Flathead River	7,580 cfs	Normal	−30.0 cfs	24 mi
Canyon Creek above Mouth at WallaceRiver gauge, Canyon Creek	10.7 cfs	Low	±0	40 mi
Nf Clearwater River near Canyon Ranger StationRiver gauge, Nf Clearwater River	617 cfs	Very low	−13.0 cfs	41 mi
Ninemile Creek above Mouth at WallaceRiver gauge, Ninemile Creek	2.9 cfs	Normal	±0	41 mi

Questions and answers

What is flood stage for Clark Fork at St. Regis MT?

The official flood stage is 19.00 ft. The level is currently 13.57 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 Clark Fork at St. Regis MT today?

On Oct 18, 2026, 02:45 PM PDT, the water level was 5.43 ft. Steady over the last 24 hours.

Is Clark Fork at St. Regis MT rising or falling?

Steady over the last 24 hours.

Is the level of Clark Fork at St. Regis MT normal?

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

What is the highest water level ever recorded at Clark Fork at St. Regis MT?

The highest level on record is 20.27 ft on May 18, 1997.

Is Clark Fork at St. Regis MT expected to rise?

The forecast expects the river to rise to 5.54 ft by Sunday, October 25 at 05:00 AM.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:12354500 (Agency page)
Coordinates: 47.30164, -115.08687 (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

Parameter	Last value	Time (UTC)	Quality
Water level	5.43 ft	2026-10-18 21:45	Provisional
Flow	2,900 cfs	2026-10-18 21:45	Provisional

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How to cite

U.S. Geological Survey: Clark Fork at St. Regis MT (usgs:12354500). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/montana/clark-fork-at-st-regis-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.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer