Missouri River September Fishing Forecast 2019

Missouri River September Fishing Forecast 2019

Returning from an East Coast swing today Squeeky here reporting the Missouri River September Fishing Forecast. Stoked to be back home, thanking Scumliner for writing the past couple weeks (he ducked into the woods upon my return with backpack and boots and may be gone for a while!) fantastic content. Don’t you think he should write more often? I do. A talented writer, photographer, videographer, angler, guide, webmaster, merchandiser, artist. A great business partner for me, who can only see 2 foot in front of my face. So thanks again John. Enjoy the solace of the woods.

Autumn may be my favorite time of year. The PMD is my favorite bug which is a summer fly, but the fall, the autumn leaves, also a Freddie Hubbard reference 5 years ago at this time, is my favorite time of year to fish. Hell with the PMD and its daily frustrations. I want crisp September mornings, the leaves committing totheir annual pigment transfer, and autumnal pace that we so dearly anticipate in downtown Craig.

It’s all good my fishy friends. We start thinking about swinging flies, stripping brown flavored beasts from the shorelines, a fall fly conundrum in the tiny BWO Pseudo deal, the want and often delayed BWO emergence (the real ones, not that microscopic chartreuse bug, and the often un-real nymph bite. September is a special time here in central Montana. Fewer anglers, casual dining at Izaak’s nightly, IPA’s on Headhunters porch, and again the ease of daily fly flicking daily mechanisms.

Breathe deep. And, again.

To the stats man. I will aimlessly wander late in this article I’m sure. Getting my head right after jamming myself into the 7 train coming home from Flushing Meadows/NYC. There are fewer people here in Cascade as I write this article than on one train. Yep.

Missouri River September Fishing Forecast 2019


As good as it gets in September. Average temperatures come in at 73F for a daily hi with 45F allowing for comfortable evenings. 5 days of rain say the stats. Yes, bring raingear. Afternoon thunderstorms are common and the larger ones can bring hail, downpours, wind. Raingearis good for keeping that ip off during the morning fishing session. First light at 6:15 with last light at 8:32. Of course all of the figures will fall with the shortening of daylight.


Wet wading? Most are. Water temps are also agreeable at 65F as the peak and falling to 61F as the sun sets. Flows at 5K-ish. They will remain the same for the month. Rarely do we see large movements in water this time of year. They water managers got this in the bag. A known amount of water in the reservoirs above us and consistent water levels are common in September.


Weed levels are about a 7 on the 1-10 scale. Some large islands and mats will keep the wade fisherman guessing. Weeds int eh water column can be considered as bad to those unfamiliar with then Mo River and the hurdles it provides for you the angler. Weeds will diminish somewhat during the month. And then some years…


Trico’s: The Trico continues trough the month. The best fishing is above Spite Hill. For the Trico deal. Daily hatches will keep you interested. Not a ton though. Spotty. Some areas of water do not produce as many as you would think. BE prepared to wander for a bit as it is not like th Tricos of the early July and August period. Nope. We are on the back end of the party. But we are still partying man. Just not as hard or as often. The Trico hatch is maturing I guess? Small spinners, techy small, painfully small patterns can get it done. Try the sunken Trico for more consistent hook up rates. If you dare.

Pseudo’s: Yes. Also painfully small. Best pattern of these small frustrating flies? A 12-16 Parachute Purple Haze. Honest. Fish it. Hatching through the month into October as well. A must have for your trip out to the Mo. Both the techy Trico along with this chartreuse colored madness fly can get a few to hand for the who like to challenge themselves. Headhunters has the Best Flies Under the Big Sky…including all of the tailwater technical fly patterns procured by 7wt. here in downtown Craig Montana.

Terrestrials: The biggest game of August was the hopper and ant. It will be again this month of September. Have a good selection of foam and beyond. You know foam can be recognized as the season progresses. Try some old school para-hoppers for a change of pace, and look for those wise old brown trouts. But the colors that have been strong are pink nd purple. Tan and yellow coming on strong. Red? Orange? Maybe. BE creative. Change you hopper at the same cadence you would your streamer. Ants? Yep. Cinnamon. Red. Flashy yes. In the film? Of course.

September Style

September Nymphing: The r August report is not as encouraging. Tougher nymph bite than normal. It may continue into this month as well. Dam nymphing which is historically epic has been somewhat slow. Yes a few fish are caught up there but not like the the circus it can be this time of year. So some are nymphing the am at the dam and hopper fishing the pm.

Weight flies, PT knock off like the S & M, Little Green Machine, Little Green MO, Zebra’s, Magic Flies, RS 2’s, Glass Beaded hobbies, Zirdles, Cray’s, with the October Caddis Pupa on the horizon along with the BWO onslaught. So heavy in those small and technical mayfly patterns that our fish love.

Deep in the morning and short for the afternoon. Use split yes, or not if you want to keep the weeds from attaching to another portion of your leader. A heavy tungsten fly up top, followed by an unweighted pattern can work.

Swingers: Getting ramped up for the month ahead. The inside bends which are generally weed free are the swinging pastures you may like to find. Smaller streamers including leech patterns can be a good start. You can get into a good Pseudo hatch and swing up a couple as well on your lightweight Trout Spey Rod. Lots of soft hackles at the shop for sale. By far the widest selection of softies in the canyon. Bar none. Come in for rigging suggestions as well. New spey lines in as well to complete the fly fishing industry’s leading Trout Spey selection. 

Check out the Trout Spey Camp Event Page here for more about our Trout Spey Camp October 10-12 2019. Fun for all skill sets at this educational and entertaining Camp coming up next month!

Lodging and Dining: Izaak’s open Wednesday thru Sunday 4-9. The Trout Shop has been open for dinner Monday and Tuesday nites and occasional weekend nites too. Shotgun Annie’s in WC open nightly.

Headhunters has lodging options galore. The popular Craig Trout Camp has 5 cabins that sleep 2, and 2 that bed 4+ nightly. All super cool and local! All kinds of river houses as well. Cabins in the woods? Yes we got them. Hotel like rooms that sleep 2 as well starting at $125/night. Big and small, we got them all at www.CraigLodging.com

Headhunters Fly Shop Autumn Hours

Headhunters Fly Shop and Guide Service open daily 630am-8pm. Call us at 406-235-3447 for lodging questions, guide trip bookings, an up to the minute fishing report, shuttles, WiFi, cell service, the friendliest and funnest fly shop staff on earth, rental boats, an amazing amount of Missouri River specific fly patterns, free coffee and so much more here in Craig.

Sinatra Autumn Leaves


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4 Comments. Leave new

  • Thanks for the Freddie Hubbard link. Watching his solo on that tune is like watching LeBron James play hoops on 8-foot rims with one-legged midgets (apologies to midgets).

  • Welcome home from the musty, dank Flushing (“2nd floor”) trains . . . departing Shea Stadium (of my time) for the “Inner City” (Blues). My Childhood recollections growing up on Long Island & going to (the old) Shea and Yankee Stadiums. So your a Mets Fan? The Bronx (ah Mickey, Roger, Whitey, Joe . . . and the rest) Bombers, a virtual whose who of the greatest players (of any era). Don’t get me started on those Amazin’ (’69) Mets!
    Autumn Leaves . . . Frankie Style for me. Only Frank could put “his style” to a tune and make it Mean Something – much better Live (or on tv). I saw a ’80’s version (I think) of Frank doing ‘Send In The Clowns’ (tv) – blew me away!
    Well, enough reminiscing. Looking forward to seeing your smiling face at the “Clinic” and hopefully get to spend 1/2 a day on the river (shared float). Had a great time last year late-July to ~ 3rd Sept. mostly swinging flies or hitting the banks with streamers. Now I’ll get to swing with the new (old) ONE 3wt. Trout Spey. Guess you could call it the “non-HD” T.S.?

  • Welcome back Sensei…Glad you got away for a spell, pretty cool field trip you went on!

  • Welcome back Mark. Glad you had some time away! I enjoyed meeting you Father at Jerry’s over a fine supper of sockeye salmon.