Missouri River below Holter Dam, near Wolf Creek, MT
Missouri River & Headwaters (Montana) · USGS gauge 06066500 · Updated Oct 24, 2:37 PM PDT · USGS data, provisional
All 3 Missouri River gauges in Montana
Reading time: Oct 24, 1:45 PM 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
- 16th percentile
- Typical range (25th–75th)
- 3,382–4,940 cfs
- Median for this date
- 4,190 cfs
- 7-day low / high
- 2,860 / 3,200 cfs
Plain-language explanation
Missouri River below Holter Dam, near Wolf Creek is flowing at 3,150 cubic feet per second (cfs) as of Oct 24, 1:45 PM PDT. That is on the low side for this time of year: lower than about 84% of the daily flows this gauge has recorded for this date (give or take 7 days) over 82 years of record (1945–2026).
The middle half of those historical flows runs from 3,382 to 4,940 cfs, with a median of 4,190 cfs; the lowest 10% of days are at or below 3,050 cfs and the highest 10% at or above 5,970 cfs.
Over the last 24 hours the flow has been steady (+0.0%). In the last 7 days it ranged from 2,860 to 3,200 cfs.
Regulated flow: upstream dams or diversions influence this gauge, so the “normal range” above reflects managed flows and can differ from natural river behavior.
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 Missouri River below Holter Dam, near Wolf Creek fishable today?
Flowcast's status for the Missouri River below Holter Dam, near Wolf Creek is “Fishable/Floatable”: flow is 3,150 cfs, within the range this gauge normally sees at this time of year, at the 16th percentile for this date (as of Oct 24, 1:45 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 Missouri River below Holter Dam, near Wolf Creek?
3,150 cubic feet per second at USGS gauge 06066500 as of Oct 24, 1:45 PM PDT, provisional data.
Is the Missouri River below Holter Dam, near Wolf Creek too high or too low right now?
Neither: it is inside the typical range for the date (3,382 to 4,940 cfs).
Is the Missouri River below Holter Dam, near Wolf Creek rising or falling?
Over the last 24 hours the flow has been steady (+0.0%).
What is a normal flow for the Missouri River below Holter Dam, near Wolf Creek in October?
For this date (give or take 7 days) the median is 4,190 cfs and the middle half of days runs 3,382 to 4,940 cfs, over 82 years of USGS record.
7-day trend
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 cfs | Percentile | Status that day |
|---|---|---|---|
| Sun Oct 18 | 2,965 | 6th | Too low |
| Mon Oct 19 | 2,988 | 7th | Too low |
| Tue Oct 20 | 2,938 | 5th | Too low |
| Wed Oct 21 | 2,913 | 4th | Too low |
| Thu Oct 22 | 2,918 | 4th | Too low |
| Fri Oct 23 | 3,050 | 10th | Fishable/Floatable |
| Sat Oct 24 (so far) | 3,157 | 16th | Fishable/Floatable |
Seasonal context
Shaded band: 10th–90th percentile of daily flows through the year; dashed line: median. Log scale. Dot: today's flow. Based on 82 years of USGS daily data (1945–2026).
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Official resources
- USGS site page for gauge 06066500 (USGS: live readings, history, station details)
- Montana fishing regulations (FWP)
- Montana aquatic invasive species (FWP)
- Montana fishing access sites (FWP)
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-06066500
- USGS name
- Missouri River Bl Holter Dam Nr Wolf Cr Mt
- Drainage area
- 16,924 sq mi
- Location
- 46.9947, -112.0107
- Record in this analysis
- 1945–2026
Nearby gauges
- Smith River near Eden, MT Fishable/Floatable 149 cfs · about 32 mi away (straight line)
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