Montana fishing reports
222 reports for Montana — what's biting, water temps, and where to focus.
Fall streamer window opens on the Yellowstone and Missouri
Flows and temperatures across the four USGS gauges point to a stable, fishable early-autumn pattern. Gauge 06041500 and gauge 06041000 are both running about 1,340 to 1,350 cfs with water at 51°F and 47°F, while gauge 06043120 shows 279 cfs at 42°F and gauge 06043500 reads 419 cfs. Those cooler numbers are the kind that switch trout from picking bugs to hunting calories. Flylords Mag says autumn is streamer season, with cooling water and fading insect activity pushing trout toward baitfish, sculpins and even smaller trout as they pack on weight before winter. Flylab (Substack) ran a Yellowstone River drift-boat story set among yellow cottonwoods, which captures the look of the valley right now, though it is a reminiscence rather than a current report. Caddis Fly (OR) says ants are still on the menu for trout, and its Perdigon write-up calls that style a hot fly this fall. Flylords Mag also points to egg patterns behind spawning fish. Brown Trout are the species that fit that last note, since fall is their spawning run. MT FWP Fishing News reports that spawning closures on some rivers begin October 1, and that the Section 5 angling closure on the Big Hole River was lifted after rain improved flows, while the Section 1 closure remained. Check current regulations for the water you plan to fish, because closures can change quickly.
Fall spawning closures and cold water shape Montana's October trout window
Gauge readings this morning show a wide spread of water temperatures across the drainage. Gauge 06043120 reads 39°F at 325 cfs, the coldest of the set. Gauge 06041500 shows 48°F at 1,230 cfs, and gauge 06041000 shows 51°F at 1,220 cfs. Gauge 06043500 is running 441 cfs. That spread means the same morning can fish very differently from one stretch to the next, so start with the warmer water and move up if the bite stalls. MT FWP Fishing News flagged that spawning closures on some rivers begin October 1, so check current Montana regulations for the exact water before you rig up. Its earlier notice on the Big Hole said rain-improved flows lifted the Section 5 angling closure, while the Section 1 closure stayed in place. Closures can change quickly with flows, so confirm the current status with FWP before you go.
Flathead trout shift to fall patterns as water cools
The Flathead and Bitterroot country is settling into fall. USGS gauge 12372000 shows 7,250 cfs and a water temperature of 57°F as of early this morning, a comfortable range for trout and one that keeps fish feeding through the day. Trout Unlimited's current tip stresses that weight matters on nymph rigs, and with flows this healthy that advice applies directly. Per Reno Fly Shop, cooler fall water has trout focused on small bugs such as Blue Winged Olives and midges, with a few caddis lingering.
Fall trout water cools down as spawning closures take hold
Fresh gauge readings across the Yellowstone and Missouri corner of Montana show a clear temperature gradient. The upper gauge, USGS gauge 06043120, reads 40°F on 314 cfs. Two lower gauges, USGS gauge 06041500 and USGS gauge 06041000, sit at 47°F and 52°F on roughly 1,220 to 1,250 cfs. USGS gauge 06043500 reports 413 cfs. That spread matters in October. The colder, lower-flow water is in classic late-fall trout range, while the warmer stretches below still hold some of summer's metabolism. MT FWP Fishing News reminds anglers that spawning closures on some rivers began October 1, so check current Montana regulations before choosing a stretch. The same bulletin notes that angling on one Big Hole River section reopened after rain improved flows, while another section stayed closed. Closures can change quickly, so confirm the status of your exact water the morning you go. Wild fall brown trout in their spawning run are the ones most worth protecting, so give redds and staging fish room.
Bitterroot and Flathead anglers get a cooler, steadier fall window
The USGS gauge 12372000 read 7,210 cfs and 59°F on the morning of October 11, a flow and temperature that points to a river system still carrying plenty of water as fall settles in. Fish in water near 59°F are comfortable and feeding, not stressed by heat, so Rainbow Trout and Brown Trout should be willing to move for food through the middle of the day. With a New Moon overhead, nights are dark and the pre-dawn and dusk hours are the cleanest low-light windows.
Montana trout fishing turns to deep nymphs and open water
Gauges in our Montana set are reading cool this morning. USGS gauge 06041500 shows 1,190 cfs at 50°F, and USGS gauge 06041000 shows 1,170 cfs at 55°F. Smaller water is lower and colder, with USGS gauge 06043120 at 246 cfs and 46°F and USGS gauge 06043500 at 381 cfs. MT FWP Fishing News reports that the angling closure on Section 5 of the Big Hole River has been lifted after rain improved flows. The Section 1 closure remains in place. The same agency notes that spawning closures on some rivers began October 1, so confirm the status of any stretch before you commit to a drive. For technique, Trout Unlimited's recent tip is that weight matters on a nymph rig, and that advice suits fall flows where fish sit deep and tight to the bottom.
Big Hole River reopens as Montana's fall spawning closures take hold
Montana Fish, Wildlife & Parks reports that the angling closure on Section 5 of the Big Hole River has been lifted after rain over the weekend improved flows, per MT FWP Fishing News. Section 5 runs from the Tony Schoonen Fishing Access Site (Notch) downstream to the confluence with the Beaverhead River — water that feeds into the Missouri's headwaters system by way of the Jefferson. Section 1, farther upstream, stays closed. The same MT FWP release flagged that spawning closures on several Montana rivers took effect October 1, a seasonal marker worth knowing for anyone working the Missouri drainage right now. Separately, MT FWP notes six of the state's seventeen aquatic invasive species inspection stations remain open through October in high-risk travel corridors, so boat and trailer checks are still part of the routine this month for anglers moving between waters.
Big Hole River reopens as rain lifts Montana flows
Rain over the weekend eased river levels enough for Montana Fish, Wildlife & Parks to lift the angling closure on Section 5 of the Big Hole River, from the Tony Schoonen access site down to the Beaverhead confluence, per MT FWP Fishing News. Section 1 stays closed. Regional USGS gauges show water temperatures spanning 45°F to 58°F and flows between 224 and 1160 cfs this morning, a wide spread that reflects the mix of smaller feeder streams and larger stems typical of the Yellowstone and Missouri headwaters country this time of year. MT FWP also flagged that spawning closures on some rivers begin October 1, so anglers should confirm water-specific rules before fishing moving water this week. Separately, Outdoor Hub reports Montana is considering removing daily limits on northern pike, rainbow trout, and smallmouth bass at Flathead Lake under the proposed 2027-2028 regulations, not yet in effect.
Flathead system eases into fall as Montana floats bigger limits
The Flathead River near Columbia Falls (USGS gauge 12372000) read 60°F with flow holding at 7,210 cfs in this morning's pre-dawn check, a steady fall-transition signature for the Flathead Lake and Bitterroot drainages. The bigger regional story this week isn't a bite report, it's regulatory: Montana Fish, Wildlife & Parks has proposed removing the daily limits on northern pike, rainbow trout, and smallmouth bass in Flathead Lake for the 2027-28 season, Outdoor Hub reports, reflecting how thick those populations have grown in the lake.
Big Hole River Reopens as Fall Spawning Closures Take Hold
Montana Fish, Wildlife & Parks lifted the angling closure on Section 5 of the Big Hole River, from the Tony Schoonen Fishing Access Site down to its confluence with the Beaverhead River, after weekend rain pushed flows back up, per MT FWP Fishing News. The Section 1 closure, covering water from the Saginaw Bridge on Skinner Meadows Road downstream, stays in effect. FWP also notes that spawning closures on some rivers begin October 1, a routine fall measure across the upper Missouri drainage that anglers in the Yellowstone and Missouri systems should expect to see rolled out stretch by stretch this month.
Flathead Lake Limits Could Loosen as Fall Fishing Settles In
Montana Fish, Wildlife & Parks is considering removing daily catch limits on northern pike, rainbow trout and smallmouth bass at Flathead Lake, according to Outdoor Hub's rundown of the agency's proposed 2027-28 regulations. If adopted, anglers could keep unlimited numbers of all three species there, a notable loosening from current catch limits on those species. The proposal is still working through the regulatory process and is not in effect this season, so standard limits still apply on the water right now. Beyond that, early October in the Flathead and Bitterroot drainages is squarely fall-transition territory, with fish shifting off summer haunts as days shorten and water cools.
Big Hole Section 5 reopens as FWP lifts angling closure
FWP lifted the angling closure on Section 5 of the Big Hole River, which runs from Tony Schoonen Fishing Access Site (Notch) to the Beaverhead River confluence, after weekend rain improved flows, according to MT FWP Fishing News. Section 1 stays closed, so check the section boundaries before you go. The same release says spawning closures on some rivers begin October 1. Montana waters remain invasive mussel free, but six of seventeen AIS inspection stations are still running through October in high-risk corridors, and anglers with watercraft must stop at every station they pass.