Lemhi River below L5 Diversion near Salmon water level

Name: Lemhi River below L5 Diversion near Salmon 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, Lemhi River, Idaho, United States

Directions

Normal for mid-October

Water level

1.74ft Steady over the last 24 hours

Measured Oct 20, 2026, 03:00 PM MDT (2 hours ago)

Flow: 163 cfs

History

7 days

Water level

What this means

The gauge at Lemhi River below L5 Diversion near Salmon reads 1.74 ft, a normal level for mid-October.

It has barely moved over the past 24 hours. Over the past 30 days it has moved between 1.71 ft and 1.77 ft.

Fall is often low-water season on rivers, until steadier rain returns.

Compared with 5 years of daily readings for this time of year. How to read levels

What the stage means on the water

A normal level is usually prime time for floating and wade fishing, as long as the weather holds upstream.

Weather at the gauge

No rain in the last 3 days.

20 Tue 65° 35° – Wind 7 mph

21 Wed 71° 46° – Wind 11 mph

22 Thu 71° 48° 0.01 in, 48% Wind 10 mph

23 Fri 55° 45° 0.14 in, 94% Wind 8 mph

24 Sat 55° 33° – Wind 5 mph

25 Sun 58° 36° – Wind 6 mph

26 Mon 50° 33° – Wind 5 mph

Forecast: Open-Meteo

Sunrise 07:58 AM Sunset 06:43 PM Daylight 10 hr, 45 min Waxing gibbous 72%

Map

Other gauges on the Lemhi River

Gauge	Level	Compared with normal	24 hours	Distance
Lemhi River near McFarlandRiver gauge, Lemhi River	103 cfs	Normal	+7.9 cfs	26 mi
Lemhi River near LemhiRiver gauge, Lemhi River	3.78 ft	Below flood stage	±0	15 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Salmon River at SalmonRiver gauge, Salmon River	2.31 ft	Below flood stage	+0.01 ft	5.9 mi
Napias Creek below Arnett Creek near LeesburgRiver gauge, Napias Creek	9.7 cfs	Normal	−0.5 cfs	17 mi
Panther Creek at CobaltRiver gauge, Panther Creek	33.3 cfs	Normal	±0	22 mi
Pahsimeroi River at EllisRiver gauge, Pahsimeroi River	192 cfs	Very low	−3.0 cfs	33 mi
Salmon River near ShoupRiver gauge, Salmon River	1,530 cfs	Low	−20.0 cfs	34 mi
Big Timber Creek above Mouth at Leadore IDRiver gauge, Big Timber Creek	3.7 cfs	High	−2.7 cfs	37 mi
Big Hole River below Big Lake Cr at Wisdom MTRiver gauge, Big Hole River	61.9 cfs	Normal	±0	37 mi
Mf Salmon River at Mouth near ShoupRiver gauge, Mf Salmon River	1,000 cfs	Low	±0	40 mi

Questions and answers

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 Lemhi River below L5 Diversion near Salmon today?

On Oct 20, 2026, 03:00 PM MDT, the water level was 1.74 ft. Steady over the last 24 hours.

Is Lemhi River below L5 Diversion near Salmon rising or falling?

Steady over the last 24 hours.

Is the level of Lemhi River below L5 Diversion near Salmon normal?

Normal for mid-October. Compared with 5 years of daily readings for this time of year.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:13305310 (Agency page)
Coordinates: 45.13278, -113.79889 (WGS84)
Vertical datum: NAVD88
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	1.74 ft	2026-10-20 21:00	Provisional
Flow	163 cfs	2026-10-20 21:00	Provisional

Download

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How to cite

U.S. Geological Survey: Lemhi River below L5 Diversion near Salmon (usgs:13305310). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/idaho/lemhi-river-below-l5-diversion-near-salmon

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