Blackfoot River near Bonner, MT

Western Montana (Clark Fork & Bitterroot) · USGS gauge 12340000 · Updated Oct 24, 2:37 PM PDT · USGS data, provisional

High but doable734 cfs▲ rising (+20% in 24 h)

Reading time: Oct 24, 1:30 PM PDT · Provisional data

Flow is above normal for the date but not extreme. Expect faster, pushier water and fewer safe wading spots. Experience level and the specific stretch matter a lot.

Vs. normal for this date
81st percentile
Typical range (25th–75th)
525–690 cfs
Median for this date
606 cfs
7-day low / high
580 / 734 cfs

Plain-language explanation

Blackfoot River near Bonner is flowing at 734 cubic feet per second (cfs) as of Oct 24, 1:30 PM PDT. That is on the high side for this time of year: higher than about 81% of the daily flows this gauge has recorded for this date (give or take 7 days) over 94 years of record (1898–2026).

The middle half of those historical flows runs from 525 to 690 cfs, with a median of 606 cfs; the lowest 10% of days are at or below 446 cfs and the highest 10% at or above 887 cfs.

Over the last 24 hours the flow has been rising (+19.7%). In the last 7 days it ranged from 580 to 734 cfs.

Why this status: Flow is above the seasonal 75th percentile and above the 50th percentile of all days on record.

Quick answers

Is the Blackfoot River near Bonner fishable today?

Flowcast's status for the Blackfoot River near Bonner is “High but doable”: flow is 734 cfs, above normal for the date but not extreme, at the 81st percentile for this date (as of Oct 24, 1:30 PM 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 Blackfoot River near Bonner?

734 cubic feet per second at USGS gauge 12340000 as of Oct 24, 1:30 PM PDT, provisional data.

Is the Blackfoot River near Bonner too high or too low right now?

It is a bit high: above the typical range for the date (525 to 690 cfs), not extreme.

Is the Blackfoot River near Bonner rising or falling?

Over the last 24 hours the flow has been rising (+19.7%).

What is a normal flow for the Blackfoot River near Bonner in October?

For this date (give or take 7 days) the median is 606 cfs and the middle half of days runs 525 to 690 cfs, over 94 years of USGS record.

7-day trend

typical range for this date (25th-75th pct)557607657707757Sun 10/18Mon 10/19Tue 10/20Wed 10/21Thu 10/22Fri 10/23Sat 10/24

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
Sun Oct 1859344thFishable/Floatable
Mon Oct 1958742ndFishable/Floatable
Tue Oct 2058541stFishable/Floatable
Wed Oct 2158341stFishable/Floatable
Thu Oct 2258341stFishable/Floatable
Fri Oct 2361755thFishable/Floatable
Sat Oct 24 (so far)72180thFishable/Floatable

Seasonal context

1002005001,0002,0005,00010,000JanFebMarAprMayJunJulAugSepOctNovDec

Shaded band: 10th–90th percentile of daily flows through the year; dashed line: median. Log scale. Dot: today's flow. Based on 94 years of USGS daily data (1898–2026).

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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-12340000
USGS name
Blackfoot River Near Bonner Mt
Drainage area
2,287 sq mi
Location
46.8994, -113.7563
Record in this analysis
1898–2026
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.

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Western Montana: Clark Fork, Bitterroot & Blackfoot

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