The latest Clark Fork Fishing report with current water conditions, hatches, best times and more. We spend part of the season guiding on the Clark Fork River when the fishing is at its best and report on it while we are there so you get up to date fishing conditions. The following are the latest Clark Fork River fishing reports, and you can browse our archives to get an idea what the fishing was like in previous years during certain times. If you have any questions, or see something more you would like to see in our fishing report, contact us. Thanks for stopping by!

Clark Fork River Montana Fishing Report 4-4-2015

Flows On Lower Clark Fork River At St. Regis:  12,300 cfs

Water Temperature:  42 degrees

Water Clarity:  stained with about 36 inches of visibility

Best Time Of Day:  12 pm-6pm

Hatches: baetis, March browns, skwala stonefly

Patterns:  Pat’s rubber legged stonefly, sj worm, bh pheasant tail, bh prince, bh copper john, purple haze, Rasta skwala, low rider skwala, Bow River special streamer

Conditions are pretty good on the lower Clark Fork River at the moment.  Water clarity is stained but is very fishable.  Nymphing is pretty much to game for now.  Look for fish toward the end of runs and especially in foamy buckets, runs and back eddies.  Pat’s stonefly with a sj worm has been very good with a single BB split shot and indicator about five feet from the big fly.

Expect sporadic hatches of baetis, March browns and skwalas on overcast days.  Look for rising fish in foam buckets and soft water down the banks.

Streamers have also been moving a few fish.  Be sure to drop a #14 pheasant tail off the back especially during March brown hatches and swim the flies through foam and back eddies.  Most of the action will likely come on the nymph.

Expect condition to hold steady for the next week.  Day are predicted to be partly cloudy with chance of precipitation and average temps in the 50’s.  We have entered a cooling trend which will actually help conditions in the long run.

This Clark Fork River fishing report is brought to you by Linehan Outfitting Company.  We’d love to earn your business.

LOC guest Keith S. and Tim with a great Clark Fork cuttbow.

LOC guest Keith S. and Tim with a great Clark Fork cuttbow.

LOC guest Pat. B getting it done on the Clark Fork.

LOC guest Pat. B getting it done on the Clark Fork.

Clark Fork River Fishing Report 3-31-2015

Flows at St. Regis:  12,400cfs

Water Temperature:  approximately 42 degrees

Best Time Of Day:  afternoon

Hatches:  baetis, March browns, skwala stonefly

Patterns:  bh prince, Pat’s rubber legged stone, double bh skwala stone, bh pheasant tail, rasta skwala, low rider skwala, parachute Adams, purple haze, circus peanut, bunny streamers

The lower Clark Fork river around St. Regis is holding steady and flows have flatlined again which is good.  Weather and temps are expected to head south for a few days which will also actually improve water conditions.  Clarity is fair with about 30 inches of visibility.

There is some dry fly fishing to be had in the afternoons.  Baetis, March browns and skwalas are popping sporadically.  Look for fish in soft water and foam.  Dry/dropper has been the ticket to that end and consider a skwala or #12 purple haze with a pt dropper.

Nymphing has been moving fish as well.  Keep in mind with higher flows fish will be concentrated in buckets and softer runs and will be generally pushed to the banks.  But don’t try to nymph too shallow.  Often the best part of the run down the banks will actually be about ten feet from the grass.

Don’t be afraid to throw streamers especially down soft seams and edges.

LOC guest Tom U. with a Clark Fork rainbow.

LOC guest Tom U. with a Clark Fork rainbow.

Clark Fork River Montana Fishing Report 9-13-2013

Flows At St. Regis:  3050cfs

Water Temperature:  approximately 55 degrees

Best Time Of Day:  This time of year the river is fishing pretty well all day.

Hatches:  hecubas, baetis, brown drakes, hoppers, October caddis

Patterns:  parachute Adams, purple haze, yellow haze, parachute hopper, royal wulff, royal trude, stimulator, bh pheasant tail, bh prince, bh copper john, tan sparkle dun

The Clark Fork is back in play again what with fall settling in and good conditions.  Water temps are steady and now in the middle 50’s.  Fish are looking up again in earnest and eating consistently.

Depending on conditions expect hecuba mayflies (big fall pmd), baetis, October caddis and hoppers.  Look for fish in faster water and what with good water temps again starting to move into more runs.  Buckets and mid-river drop-offs are also holding fish.  Hoppers and droppers will play all day in 2-6 feet of walking speed current.

#clarkforkriver #H2 #montanaflyfishing

LOC guests Tom and Sue U. with pair of perfect Clark Fork rainbows!

LOC guests Tom and Sue U. with pair of perfect Clark Fork rainbows!

Clark Fork River Montana Fishing Report 4-24-2013

Flows: approximately 3800 cfs near Missoula Water temperatures:  43-47 degrees.  Best time of day:  12:00 pm-5:00 pm

Hatches:  March browns, gray drakes, blue winged olives

Patterns:  purple haze, parachute Adams, gray drake emergers, Pat’stonefly, bh pheasant tail, skwala stonefly.


River conditions are great and it’s fishing well.  Expect mornings to be a bit slow and generally all about nymphing.  Afternoons offer fantastic dry fly action as soon as bugs start to hatch.  Weather is expected to remain stable through the end of the week so great fishing should continue as well.


Clark Fork River beauty!

Clark Fork River beauty!


Lower Clark Fork River Montana Fishing Report 4/17/2013

Flows:  7160 in St. Regis

Water temperatures:  approximately 45 degrees Best time of day:  afternoons

Hatches:  skwala stoneflies, March browns, gray drakes, blue winged olives.

Patterns:  pat’s stonefly nymph, double bead stonefly nymph, bh pheasant tail nymph, parachute Adams, purple haze , bullet head skwala, hellboy skwala, March brown sparkle dun


The lower Clark Fork is in great shape and fishing pretty well.  It’s cold out but flows are great and dry fly action has been steady in the afternoons.  Fish are looking up and eating skwala patterns.  March browns are coming off int the afternoons and nymphing has been good in deeper runs and boulder gardens.  Water temps are a bit warmer down in the St. Regis section and bugs and fish and especially anglers notice the difference.  Be sure to dress for the cold but there is some good fishing to be had!

Clark Fork River

Clark Fork River


Lower Clark Fork River Montana Fishing Report 4-7-2013

flow at St. Regis:  10,600cfs

water temps:  approximately 44 degrees

hatches:  skwala stonefly, March browns, gray drakes, blue winged olives

best time of day:  afternoon/evening

patterns:  Pat’s stonefly nymph, bh prince, bh pheasant tail, bh copper john, parachute Adams, purple haze, March brown sparkle dun, olive sparkle dun, bullet head skwala, rasta skwala

Flows have bumped up steadily over the last 72 hours due to rain.  Water clarity is fair with visibility about 12-14 inches.  Situation should improve quickly in the next couple days.  Expect a cool, drying trend and gray skies through the early part of the week.  Once the water clears up a bit, good hatches of bugs should follow and potentially some great dry fly action.  For now, if you’re going to give it shot, stick with nymphing for the most part and stick with the dynamic duo of a Pat’s stone and orange sj worm.

Tim Linehan of Linehan Outfitting Company on the lower Clark Fork River

Hooked up on the lower Clark Fork River

Lower Clark Fork River Fishing Report 4-4-2013

flow:  7000cfs

water temperature:  approximately 45 degrees

hatches:  skwala stoneflies, March browns, blue winged olives, gray drakes

best time of day:  afternoon

patterns:  Pat’s stonefly, skwala nymphs, bh prince nymph, bh pheasant tail, bullet head skwala, March brown sparkle dun, parachute Adams, purple haze

Warm daytime temps have the river rising and flows have increased 2000cfs over the last 72 hours.  Water clarity is stained but visibilty is still about 24 inches.  Bug activity has been great with skwalas flying, March browns hatching and fish on top if there’s cloud cover.  Generally speaking conditions are still favorable.  It looks like a front is moving into the area bringing potential rain toward the weekend.  Stay tuned…showers and cooler temps would not be an issue and might actually help.  But big rain could blow things out for a day or two? 

Montana Fly Company sales director Jake Chutz with Linehan Outfitting Company

Montana Fly Company’s Jake Chutz with Linehan Outfitting Company onthe Clark Fork River



Clark Fork River Montana

The lower Clark Fork around St. Regis is in great shape and fishing well!  Flows are presently approximately 7000cfs, the river is fresh, and so are the fish.  Big bugs and droppers are still the name of the game.  Yesterday the LOC crew had a great day and size 8 Kootenai Hellboy hoppers with size 14 pheasant tail droppers moved lots of fish in the morning.  Heavy downpours put the fish off for a while before lunch but big, red Tarantulas moved a lot of fish in the afternoon.  Pmds and caddis are popping sporadically but fish are still looking for big bites at least for now.

LOC guests Alan P. and Roy G. on the Clark Fork with a nice pair!

Clark Fork River Montana Fishing Report

The lower river down by St. Regis is still in very fishable shape.  Present flows are around 5800, up slightly from yesterday due to showers and some sunshine upstream.  Today could be a bit brighter with calm winds.  Nymphing is still best bet and the dynamic duo featuring a big prince followed by a big worm is providing consistent action.  Midge are making a move here and there and from time to time you can find a nose to cast to.  All in all not a bad day to give it a shot.

Linehan Outfitting Co./Clark Fork rainbow

Clark Fork River Montana Fishing Report

Flows are hovering around 5600cfs and water temp is about 40 degrees and the clarity is plenty good at the moment.  Nymphing is still pretty much the best bet with big prince and worms always moving fish this time of year.  Midge are popping from time to time and will bring a few noses to surface but March browns, skwalas and amoletus brown drakes are still a couple weeks away.  But all in all the river is very fishable and the spring season is upon us!

Linehan Outfitting Co/Clark Fork river rainbow