Pahsimeroi River at Ellis, ID

Central Idaho (Salmon River) · USGS gauge 13302005 · Updated Oct 25, 11:23 AM PDT · USGS data, provisional

Fishable/Floatable213 cfs● steady (-5% in 24 h)

Reading time: Oct 25, 11:00 AM PDT · Provisional data

Flow is in a typical range for the date. Rivers are generally easiest to fish and float when they are near their normal flow, but this status says nothing about water clarity, hatches, hazards such as wood in the river, or dam releases.

Vs. normal for this date
8th percentile
Typical range (25th–75th)
229–314 cfs
Median for this date
275 cfs
7-day low / high
189 / 248 cfs

Water temperature & gage height

Gage height (stage)
1.74 ft as of Oct 25, 11:00 AM PDT · USGS 00065 · Provisional

Context only: these readings do not affect the status above, which is based on flow (cfs) alone. Gage height is the water level above this gauge's own reference point, not water depth, and can't be compared between gauges. Temperature converted from °C to °F by Flowcast. Source: USGS, provisional data.

Plain-language explanation

Pahsimeroi River at Ellis is flowing at 213 cubic feet per second (cfs) as of Oct 25, 11:00 AM PDT. That is among the lowest flows on record for this time of year: lower than about 92% of the daily flows this gauge has recorded for this date (give or take 7 days) over 43 years of record (1984–2026).

The middle half of those historical flows runs from 229 to 314 cfs, with a median of 275 cfs; the lowest 10% of days are at or below 215 cfs and the highest 10% at or above 341 cfs.

Over the last 24 hours the flow has been steady (-5.3%). In the last 7 days it ranged from 189 to 248 cfs.

Why this status: Flow is within the range this gauge normally sees at this time of year (or the deviation is too small in absolute terms to matter).

Quick answers

Is the Pahsimeroi River at Ellis fishable today?

Flowcast's status for the Pahsimeroi River at Ellis is “Fishable/Floatable”: flow is 213 cfs, within the range this gauge normally sees at this time of year, at the 8th percentile for this date (as of Oct 25, 11:00 AM PDT). That describes flow only. It says nothing about water clarity, temperature, fish activity, access or fishing regulations.

What is the current flow of the Pahsimeroi River at Ellis?

213 cubic feet per second at USGS gauge 13302005 as of Oct 25, 11:00 AM PDT, provisional data.

Is the Pahsimeroi River at Ellis too high or too low right now?

Neither: it is inside the typical range for the date (229 to 314 cfs).

Is the Pahsimeroi River at Ellis rising or falling?

Over the last 24 hours the flow has been steady (-5.3%).

What is a normal flow for the Pahsimeroi River at Ellis in October?

For this date (give or take 7 days) the median is 275 cfs and the middle half of days runs 229 to 314 cfs, over 43 years of USGS record.

7-day trend

typical range for this date (25th-75th pct)180199218238257Mon 10/19Tue 10/20Wed 10/21Thu 10/22Fri 10/23Sat 10/24Sun 10/25

Hourly flow in cfs, Pacific time. The shaded band is the typical range (25th–75th percentile) for this date, shown when it falls within the chart.

Day (Pacific)Mean cfsPercentileStatus that day
Mon Oct 191935thToo low
Tue Oct 201924thToo low
Wed Oct 211934thToo low
Thu Oct 221965thToo low
Fri Oct 2322726thFishable/Floatable
Sat Oct 2422624thFishable/Floatable
Sun Oct 25 (so far)2149thFishable/Floatable

Seasonal context

1002005001,000JanFebMarAprMayJunJulAugSepOctNovDec

Shaded band: 10th–90th percentile of daily flows through the year; dashed line: median. Log scale. Dot: today's flow. Based on 43 years of USGS daily data (1984–2026).

Guide, outfitter or fly shop on this river? List your service on Flowcast (free early listings, launching).

Official resources

Links go to the agencies' own websites and were checked as working. Flowcast does not summarize fishing or boating rules: regulations and closures change, and the agency pages are the authority.

About this gauge

USGS site
USGS-13302005
USGS name
Pahsimeroi River At Ellis Id
Drainage area
830 sq mi
Location
44.6917, -114.0469
Record in this analysis
1984–2026
Data from the U.S. Geological Survey (USGS). Readings are provisional and subject to revision. Flowcast statuses are automated comparisons with each gauge's own history, not safety ratings or fishing reports. Check local conditions, weather, regulations and closures before you go. Rivers can change quickly.

Nearby gauges

Browse this region

Salmon River Country (Idaho)

Questions about what the status means? How to read a status · FAQ.