Henrys Fork near Island Park water level

Name: Henrys Fork near Island Park 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, Henrys Fork, Idaho, United States

Directions

Very low for mid-October

Water level

2.12ft Steady over the last 24 hours

Measured Oct 19, 2026, 08:45 PM MDT (1 hour ago)

Flow: 89.9 cfs

History

7 days

Water level

What this means

Henrys Fork near Island Park is running far below normal at 2.12 ft.

It has barely moved over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. In the last month it has stayed between 2.12 ft and 2.14 ft.

Fall is often low-water season on rivers, and it usually takes a few days of steady rain to change that.

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

Key numbers

Highest on record: 6.15 ftApril 26, 1946

Floating and fishing near Henrys Fork near Island Park

Low water exposes gravel bars that make good wading access, but some boat ramps may be left high and dry.

Highest crests on record

Rank	Level	Date
1	6.15 ft	April 26, 1946
2	6.06 ft	May 23, 1984
3	5.96 ft	June 1, 1943
4	5.87 ft	July 18, 1955
5	5.85 ft	August 26, 1983
6	5.82 ft	May 18, 1982
7	5.80 ft	July 21, 2015
8	5.80 ft	May 13, 1971
9	5.80 ft	June 9, 1999
10	5.45 ft	July 30, 2013

Weather at the gauge

No rain in the last 3 days.

18 Sun 60° 29° – Wind 10 mph

19 Mon 60° 33° – Wind 10 mph

20 Tue 60° 42° 0.03 in, 24% Wind 9 mph

21 Wed 61° 43° 0.03 in Wind 10 mph

22 Thu 65° 43° 0.05 in, 68% Wind 15 mph

23 Fri 46° 35° 0.20 in, 89% Wind 7 mph

24 Sat 49° 29° – Wind 7 mph

Forecast: Open-Meteo

Sunrise 07:48 AM Sunset 06:34 PM Daylight 10 hr, 47 min First quarter 65%

Map

Other gauges on Henrys Fork

Gauge	Level	Compared with normal	24 hours	Distance
Henrys Fork near LakeRiver gauge, Henrys Fork	0.4 cfs	Very low	+0.1 cfs	12 mi
Henrys Fork near AshtonRiver gauge, Henrys Fork	636 cfs	Very low	+14.0 cfs	25 mi
Henrys Fork at St AnthonyRiver gauge, Henrys Fork	3.20 ft	Below flood stage	±0	34 mi
Henrys Fork near RexburgRiver gauge, Henrys Fork	2.98 ft	Below flood stage	±0	48 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Island Park ReservoirReservoir	6,281.72 ft	Low		0.2 mi
Henrys Lake and Henrys LakeLake	12.89 ft	Low		13 mi
Madison River near West YellowstoneRiver gauge, Madison River	303 cfs	Very low	±0	23 mi
Fall River near AshtonRiver gauge, Fall River	450 cfs	Low	+5.0 cfs	25 mi
Fall River near SquirrelRiver gauge, Fall River	216 cfs	Very low	+4.0 cfs	25 mi
Fall River above Yellowstone Canal near SquirrelRiver gauge, Fall River	427 cfs	Very low	−4.0 cfs	27 mi
Firehole River at Old Faithful, YNPRiver gauge, Firehole River	38.7 cfs	Very low	±0	28 mi
Fall River near ChesterRiver gauge, Fall River	2.20 ft	Below flood stage	−0.01 ft	29 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 Henrys Fork near Island Park today?

On Oct 19, 2026, 08:45 PM MDT, the water level was 2.12 ft. Steady over the last 24 hours.

Is Henrys Fork near Island Park rising or falling?

Steady over the last 24 hours.

Is the level of Henrys Fork near Island Park normal?

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

What is the highest water level ever recorded at Henrys Fork near Island Park?

The highest level on record is 6.15 ft on April 26, 1946.

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:13042500 (Agency page)
Coordinates: 44.41667, -111.39472 (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	2.12 ft	2026-10-20 02:45	Provisional
Flow	89.9 cfs	2026-10-20 02:45	Provisional

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How to cite

U.S. Geological Survey: Henrys Fork near Island Park (usgs:13042500). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/idaho/henrys-fork-near-island-park

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