Montana / West
Blackfoot River
A Blackfoot River report for anglers checking Bonner flow, access corridor rules, cutthroat and bull-trout safeguards, hatches, and weather.
Image: Railroad bridge over the Blackfoot River near Milltown, Montana / CC BY 4.0 / PinchyCCFishability now: Blackfoot River fishability today
GreatData confidence: High96/100
Fishable now because the live gauge is stable, weather is mild, and no public alert is active.
Flow observed
5:30 PM UTC
Weather observed
6:00 PM UTC
Score calculated
6:15 PM UTC
Why this rating
Flow
Water temperature
Public alerts
Next 6-12 hours
Hold
Stable live data supports staying with the plan, but recheck the gauge and forecast before leaving.
USGS flow
5,900 cfs
Current trend: flow stable, so weather, temperature, and access checks drive the next change.
More planning details: flies, flow bands, and live source checks
Fish it today
Start here
Start with the Bonner gauge and the recreation-corridor plan. Then decide whether the day is a bank-focused dry-dropper float, a roadside wade session, or a short streamer window around clouds and clarity.
Best flow clue
Use RiverReports and USGS 12340000 near Bonner together. Dropping post-runoff water and cool stable mornings are the cleanest windows; high, muddy, or hot low water should move the plan to safer edges or a different river.
Skip trigger
Skip or pivot when FWP restrictions are active for your timing, water temperature is unsafe, runoff is pushy, corridor access or camping rules are unclear, or native-fish handling would be poor.
Flow decision bands
Low but fishable
Low clear Blackfoot water can still fish, but native-trout care, summer heat, and exact corridor access should keep the plan conservative.
Best post-runoff window
Dropping Bonner flow with cool mornings and current restriction checks is the cleanest signal for stoneflies, caddis, hoppers, dry-droppers, and short streamer work.
Pushy or unsafe
High runoff, muddy water, or any reach that depends on uncertain crossings, camping exits, or boat control should move the day to safer edges or another river.
Native trout and corridor caution
Bull trout, westslope cutthroat handling, corridor rules, camping limits, and fast-changing summer restrictions can override a good-looking graph.
USGS flow
5,900 cfs
Current trend: flow stable, so weather, temperature, and access checks drive the next change.
Live USGS flow
5,900 cfs / stable
Live NWS forecast
65F / Sunny
Live water temperature
51F from USGS
No NWS alert flag
No active NWS alert was returned for this forecast point.
Use the Bonner gauge for the lower-river trend and do not wade heavy mid-channel current during runoff.
Treat cutthroat and bull-trout handling carefully; when in doubt, release fish quickly and keep them wet.
FWP's recreation corridor has specific access and camping rules, so plan stops before launching.
In summer heat, fish early, carry a thermometer, and leave trout alone when temperatures climb.
Editorial review
How this report is maintained
This Blackfoot River report is maintained from RiverReports and USGS Bonner flow data, Montana FWP fishing regulations, current closure and restriction sources, stream-access law, Blackfoot recreation-corridor information, weather, media-credit, and freestone trout planning sources.
Byline
BlueStreamFly editorial team
Reviewed by
BlueStreamFly source review
Maintained by
Mountain Brook Run LLC
Last material review
2026-05-31
Report confidence
High confidence
91/100
High confidence: RiverReports, USGS flow support, Montana FWP regulations, current restriction checks, stream-access law, recreation-corridor access information, weather, and image credit are present. Confidence is moderated by fast-changing heat restrictions, private-land boundaries, corridor camping rules, and native-fish handling concerns.
Regulations
Montana FWP regulations and current restriction pages are linked, with native trout and bull trout cautions in the report.
Flow support
RiverReports Blackfoot near Bonner is backed by USGS 12340000.
Access support
FWP stream-access and Blackfoot recreation-corridor sources provide concrete public-planning anchors.
Weather and safety
The National Weather Service point resolved and the page calls out runoff, cold water, summer heat, private banks, and float logistics.
Angler usefulness
The page separates flow, heat, native fish, corridor access, wade/float choice, and backup-water decisions.
Editorial review
A public correction path, source standards page, image credit, and public review history are included.
Fishability source review
2026-05-31 / material content or source review
RiverReports and USGS 12340000 near Bonner, Montana FWP regulations and restriction pages, stream-access law, Blackfoot recreation-corridor information, and the National Weather Service point were rechecked before adding the Pine Creek-standard current-fishability layer.
2026-05-31
Upgraded the page to the Pine Creek fishability standard with corridor-aware decision bands, access cards, backup logic, and a reviewed route profile.
2026-05-28
Added lower-corridor trip fit, wade-versus-float framing, native-trout and warm-water skip cues, recreation-corridor access nuance, backup-water suggestions, editorial review signals, and a page-specific report-confidence meter after source review.
2026-05-25
Initial source-reviewed report published with flows, weather, hatches, flies, tactics, access, regulations, and FAQs.
Angler planning edge
Local details that change the plan
Best for
Western Montana trout anglers planning stonefly, caddis, hopper, dry-dropper, and streamer days from the recreation corridor toward Bonner, Float or wade trips where Bonner flow, FWP restrictions, corridor rules, native-trout handling, and water temperature need to line up, Anglers deciding whether the Blackfoot is a better fit than Missoula-area Clark Fork water, the Bitterroot, or Rock Creek, Conservation-aware trips where bull trout, westslope cutthroat, heat restrictions, and legal access matter before fly selection
Wade or float
Treat the Blackfoot as a mixed wade-and-float freestone. The useful plan starts with the Bonner flow and current FWP restrictions, then checks corridor access, legal camping, and safe wading before choosing a reach.
Best flows
Use RiverReports and USGS 12340000 near Bonner together. Dropping post-runoff water and cool stable mornings are the cleanest windows; high, muddy, or hot low water should move the plan to safer edges or a different river.
When to skip
Skip or pivot when FWP restrictions are active for your timing, water temperature is unsafe, runoff is pushy, corridor access or camping rules are unclear, or native-fish handling would be poor.
Local plan
Start with the Bonner gauge and the recreation-corridor plan. Then decide whether the day is a bank-focused dry-dropper float, a roadside wade session, or a short streamer window around clouds and clarity.
Pressure
Pressure follows post-runoff clarity, summer float windows, and easy corridor sites. Early launches, legal camp planning, and backup access usually matter more than another fly change.
Access nuance
FWP stream-access and Blackfoot recreation-corridor sources support planning, but designated camping, private crossings, boat use, and heat restrictions still need current confirmation.
Backup water
If the Blackfoot is high, warm, crowded, or restricted, compare Rock Creek for a wade-focused creek plan, the Clark Fork for larger Missoula water, or the Bitterroot for another freestone option.
About the river
Setting, character, and why it fishes the way it does.
The Blackfoot River drains western Montana mountain country before joining the Clark Fork near Bonner. It is a freestone river with boulder gardens, cottonwood bends, canyon water, and long float reaches.
The river is part of Montana's conservation story. Native westslope cutthroat and bull trout are important here, so a useful fishing report must balance tactics with careful handling and current rules.
For anglers, the draw is active trout water: stonefly banks, caddis riffles, hopper edges, streamer slots, and enough structure to make each reach feel different.
Target species
Westslope cutthroat trout
A key native trout; handle quickly and release carefully under current FWP rules.
Rainbow and hybrid trout
Common trout targets in faster riffles, seams, and bank water.
Brown trout
More likely around undercuts, deeper bends, and low-light streamer water.
Bull trout
A protected native char. Do not target or retain bull trout, and release any incidental fish immediately.
Reading the water
Post-runoff green
Fish stonefly dries, rubberlegs, and streamers tight to banks and soft current.
Clear summer flow
Use hoppers, ants, caddis, and dry-droppers around shade and riffle edges.
High or muddy
Stay near soft edges only if safe, or wait for the river to drop and clear.
Warm low water
Check FWP restrictions and fish early, or move to colder water if trout are stressed.
Best seasons
Spring
Skwalas and March Browns can fish well before runoff or on stable windows.
Early summer
Runoff drop brings salmonfly, golden stone, caddis, and streamer opportunities.
Mid to late summer
Hoppers, ants, beetles, and early starts matter; watch temperature closures.
Fall
BWOs, October caddis, and streamers can work during cool stable flows.
Preferred flow source
Blackfoot River near Bonner
RiverReports is the preferred chart source when coverage exists. When a matching USGS gauge exists, keep it open as the official backstop for station data and current hydrograph context.
USGS data chart
Official USGS trend
Streamflow over the latest USGS reporting window.
Latest
5,900 cfs
Jun 3, 5 PM UTC
Weather
River weather report
Weather can change wading safety, road access, water temperature, hatches, and the best time of day to fish.
Live forecast loads as you reach this section
This keeps the report fast while still using the official National Weather Service forecast point.
Hatches and flies
Hatch chart and fly picks
March to April
Skwalas, March Browns, BWOs, midges, and early stonefly movement
Skwala dry, rubberleg, March Brown, BWO emerger, zebra midge
May to June
Runoff edges, salmonflies, golden stones, caddis, PMDs
Chubby Chernobyl, Pat's rubber legs, caddis pupa, PMD emerger, streamer
July to August
Hoppers, ants, beetles, nocturnal stones, spruce moths where present
Hopper-dropper, foam ant, beetle, nocturnal stone, small perdigon
September to October
Mahoganies, BWOs, October caddis, baitfish, fall streamer windows
Mahogany, BWO, October caddis, sculpin, leech
Stoneflies
Pat's rubber legs, Chubby Chernobyl, skwala, golden stone
Use before, during, and after stonefly movement or when trout sit tight to banks.
Mayflies and caddis
BWO, March Brown, PMD, caddis pupa, X-caddis
Use during spring and fall hatches or summer evening riffle feeding.
Terrestrials
Hoppers, ants, beetles, hopper-dropper rigs
Use during summer near grass, shade, undercuts, and slower bank seams.
Streamers
Sculpin, leech, sparkle minnow, small articulated streamer
Use in stained water, cloud cover, fall, or when larger trout hunt edges.
Tactics
How to fish it
Fish banks and inside seams first after runoff; trout often avoid the heaviest current.
Use a dry-dropper through broken pocket water, then switch to a single dry when fish look up.
During summer, cover shade, grass banks, and undercuts with hoppers and ants before noon.
Streamer fish cloudy days, stained edges, and deeper bends with a controlled swing or strip.
Give native trout short fights, wet hands, and fast releases.
Rigging
Rod, leader, and setup notes
A 5-weight covers dries and nymphs; carry a 6-weight for wind, stonefly rigs, and streamers.
Use 3X to 5X for dries and droppers depending on clarity and fly size.
For streamers, use a short 0X to 2X leader and a sink tip only where depth and safety justify it.
Bring a thermometer, rubber net, wading staff, and layers for cold water even on warm days.
If floating, scout launches, takeouts, and legal camp options before leaving cell service.
Access
Access and planning notes
Bonner gauge and lower corridor
Primary flow decisionWade / float / trail
Gauge / wade / float
When to pick it
Start here when runoff trend and current restriction context decide whether the Blackfoot is worth fishing at all.
Caution
The Bonner reading does not settle every upper-corridor campsite, crossing, or private-boundary question.
Blackfoot recreation corridor
Public access backboneWade / float / trail
Road corridor / wade / float scout
When to pick it
Use it when public sites, camping rules, and realistic pullouts shape the day more than fly selection.
Caution
Corridor access is strong, but designated camping, private crossings, and boat use still need exact confirmation.
Roadside wade and float choices
Pressure reliefWade / float / trail
Road scout / short wade / float
When to pick it
Pick these when one obvious corridor site is too crowded but the river trend still supports a cautious session.
Caution
Do not force unfamiliar crossings or narrow pullouts just to escape pressure.
Montana stream access does not let you cross posted private land to reach the water.
FWP corridor camping is limited to designated or permitted sites, so do not improvise camps on gravel bars.
Check current closures, hoot-owl restrictions, and fire or road conditions before committing to a float.
Regulations
Check before fishing
Montana FWP regulations and current waterbody restrictions control seasons, harvest, methods, protected species, and heat-related closures. Check the current FWP pages before fishing.
Primary base
Missoula, Bonner, Ovando, or Lincoln
Best day style
FWP corridor sites, float planning, wade pullouts, and private-bank awareness
Check first
Bonner flow, FWP restrictions, corridor access rules, weather, and water temperature
Safety
Fast runoff, cold water, private banks, float camps, heat restrictions, and bull trout handling
Gear
Helpful gear for this water
5-weight rod
Covers dries, light nymphs, and most trout presentations.
6-weight rod
Better for wind, stonefly rigs, streamers, and hopper-dropper banks.
Wading staff
Useful in pushy freestone water, tailouts, slick ledges, and roadside access.
Thermometer
Check summer temperatures and stop trout fishing when handling becomes unsafe.
Nearby water
Other water to research
Backup logic
High water
Stay off crossings and compare Rock Creek or another safer wade option when the Bonner trend is still too pushy.
Heat or restrictions
Fish only cool legal windows and pivot away from trout pressure when native-fish handling or FWP restrictions make the score too optimistic.
Crowding
Launch early, shorten the session, or move to a less obvious legal corridor access rather than stacking boats or waders into one lane.
Access issue
Use confirmed recreation-corridor and stream-access-law entry only and pivot if private crossings, camping rules, or site status are unclear.
Clark Fork River
A Missoula-area option when you want bigger water and urban access.
Rock Creek
A wade-focused blue-ribbon creek with strong stonefly and access planning.
Bitterroot River
Another western Montana freestone with Skwalas, hoppers, and FWP restriction checks.
FAQ
Fast answers
Is Blackfoot River fishable today?
Blackfoot River looks very fishable right now. The live score is 96/100, based on current flow, weather, public alerts, and the report's planning context. Recheck the linked gauge and forecast before leaving because conditions can change quickly after rain, heat, access changes, or flow swings.
What flow is best for Blackfoot River?
Use RiverReports and USGS 12340000 near Bonner together. Dropping post-runoff water and cool stable mornings are the cleanest windows; high, muddy, or hot low water should move the plan to safer edges or a different river.
When should I skip Blackfoot River?
Skip or pivot when FWP restrictions are active for your timing, water temperature is unsafe, runoff is pushy, corridor access or camping rules are unclear, or native-fish handling would be poor.
Is Blackfoot River safe to wade right now?
The fishability score is not a wading guarantee. Wade only where your chosen access has safe edges, clear footing, legal entry, and no forced crossings; high, rising, stained, or storm-affected water should be treated conservatively.
What should I check first before fishing the Blackfoot River?
Check the Bonner gauge, FWP current restrictions, water temperature, weather, and the corridor access plan.
Are there special regulations on the Blackfoot River?
Yes. Blackfoot rules include native-trout protections and reach-specific limits, so read the current FWP regulations.
What flies should I bring for the Blackfoot River?
Bring the hatch-chart flies, a few confidence nymphs, and a streamer box. Then adjust for water temperature, clarity, and the insects you actually see.
Can I wade the Blackfoot River?
Yes in many places, but flows are pushy and access is not continuous. Use official sites and stay within Montana stream-access rules.
When should I skip the Blackfoot River?
Skip it when flows are unsafe, temperatures stress trout, wildfire or emergency closures are active, or legal access for the reach is not clear.
Sources
Source set for this report
Reviewed 2026-05-31