Western Montana Fly Fishing Report
Regional River Conditions Overview
Western Montana rivers are still carrying spring volume, but the overall trend has improved across the Bitterroot, Blackfoot, Clark Fork, Rock Creek, and West Fork of the Bitterroot. The Bitterroot system is the best bet this week because flows are more manageable, clarity is improving, and fish are beginning to use more classic summer holding water while still staying close to soft edges and structure. Rock Creek has strong salmonfly and golden stone activity, the Blackfoot is becoming a real big-bug option, and the Clark Fork is improving but still benefits from careful water selection. Detailed river-by-river reports appear lower on the page.
Bitterroot River
Conditions
Water temp: 50–60°F. The Bitterroot is much more fishable than it was during the heavier runoff push. The upper river near Darby is around 1,480 CFS, Bell Crossing is roughly in the upper 2,000s to low 3,000s, and the lower river near Missoula is around 3,950 CFS. This is still elevated water, but the river is in good enough shape to fish nymphs, streamers, dry-droppers, and dries when the hatch window lines up.
Where to Fish
- Upper and middle river side channels
- Soft inside bends with depth
- Bank seams below current breaks
- Foam lines along calm inside banks
- Riffle edges and tailouts when bugs are active
- Lower river edges and slower shelves where clarity allows
How to Fish It
- Start with dry-dropper rigs or nymphs in the morning
- Watch for PMDs, caddis, Yellow Sallies, Green Drakes, and stoneflies as the day warms
- Fish larger dries near banks and structure when trout are looking up
- Use nymphs in faster seams and deeper slots
- Switch to streamers early, late, or when water has color
- On warmer afternoons, watch water temps and shift earlier if fish slow down
Top Patterns
- Golden stone dry or nymph, size 6–10
- Foam salmonfly dry, size 4–6
- PMD emerger or dry, size 14–18
- Green drake emerger or dry, size 10–12
- Caddis dry or pupa, size 12–16
- Yellow Sally dry or nymph, size 12–16
- Olive or black streamer, size 4–6
Blackfoot River
Conditions
Water temp: 52–60°F. The Blackfoot near Bonner is around 3,010 CFS and has dropped into a more realistic fishing range. Salmonflies and golden stones are in the mix, especially in lower and middle sections, but the river still has push. This is a better week to fish the Blackfoot than the past few reports.
Where to Fish
- Lower and middle river banks with structure
- Boulder edges and soft shelves
- Inside corners below faster current
- Tailouts below buckets and deep runs
- Shaded banks and wood during big-bug windows
- Still avoid careless wading in heavier slots
How to Fish It
- Fish large dry-dropper rigs along banks and boulder edges
- Use stonefly nymphs and worms when fish are not committing to dries
- Streamer fish early or when cloud cover keeps light low
- Cover water, but slow down around prime structure
- Focus on fishable banks rather than mid-river current
Top Patterns
- Foam salmonfly dry, size 4–6
- Golden stone dry or nymph, size 6–10
- Stonefly nymph, size 4–10
- Worm pattern, red or wine
- Green drake emerger, size 10–12
- PMD nymph or emerger, size 14–18
- Black or olive streamer, size 4–6
Clark Fork River
Conditions
Water temp: 54–62°F. The Clark Fork is improving, with the river above Missoula around 4,490 CFS and below Missoula around 8,310 CFS. The upper river is more approachable, while the lower river is still a bigger-water float and edge-fishing program. Expect better fishing where clarity and softer holding water line up.
Where to Fish
- Upper river soft edges above Missoula
- Inside banks with foam lines
- Backwater areas and side channels
- Riffle edges when PMDs or caddis are active
- Slower shelves with depth
- Lower river only where drift control is realistic
How to Fish It
- Nymph or dry-dropper the softer edges first
- Watch for PMDs, caddis, and Yellow Sallies in slower seams
- Streamer fish banks and buckets when visibility allows
- Use dries only when fish are working a clear feeding lane
- Avoid fast main current where presentations cannot be controlled
Top Patterns
- PMD emerger or dry, size 14–18
- Caddis dry or pupa, size 12–16
- Yellow Sally dry or nymph, size 12–16
- Golden stone nymph
- Sowbug-style pattern
- Dark mayfly nymph
- Olive or black streamer
Rock Creek
Conditions
Water temp: 50–58°F. Rock Creek near Clinton is around 927 CFS and in a much better fishing range than the past few weeks. Salmonflies are still a major story, especially higher in the drainage, with golden stones, Green Drakes, Yellow Sallies, PMDs, and caddis all adding to the menu. Wading is more realistic, but the creek still has push in the main channel.
Where to Fish
- Middle and upper creek banks where salmonflies are active
- Willow edges and cutbanks with softer current
- Boulder edges and pocket-water cushions
- Inside bends with walking-speed current
- Tailouts during PMD, Green Drake, or caddis activity
- Avoid unnecessary crossings in heavier sections
How to Fish It
- Fish salmonfly and golden stone dries tight to banks and structure
- Use stonefly nymphs below big dries when fish are not fully committing
- Watch for Green Drakes on cloudy windows and PMDs in softer riffles
- Use caddis dries and pupa later in the day
- Fish streamers through buckets and deeper bank water early or late
Top Patterns
- Foam salmonfly dry, size 4–6
- Golden stone dry or nymph, size 6–10
- Green drake dry or emerger, size 10–12
- PMD emerger or dry, size 14–18
- Yellow Sally dry or nymph, size 12–16
- Caddis dry or pupa, size 12–16
- Black or olive streamer, size 4–6
West Fork of the Bitterroot
Conditions
Water temp: 47–55°F. The West Fork near Conner is around 360 CFS and is the cleanest smaller-water option in the Bitterroot system this week. This is one of the more manageable choices in the region, especially for anglers looking for controlled drifts, smaller water, and more technical dry-fly windows.
Where to Fish
- Soft banks below Painted Rocks through Conner
- Riffle edges with moderate current
- Protected tailouts and inside seams
- Edges below wood, boulders, and structure
- Calm seams during PMD, BWO, caddis, and Yellow Sally activity
- Avoid spooky shallow fish by approaching slowly
How to Fish It
- Start with small dry-dropper rigs or light nymph rigs
- Watch for PMDs, BWOs, caddis, and Yellow Sallies in the afternoon
- Use 5X or 6X when fish are clearly up and eating dries
- Make clean first casts in softer tailouts and seams
- Scale down when fish get selective
Top Patterns
- PMD emerger or dry, size 14–18
- BWO emerger, size 16–18
- Caddis dry or pupa, size 12–16
- Yellow Sally dry or nymph, size 12–16
- Small stonefly nymph
- Soft hackle, size 12–16
- Small olive streamer
Planning Note
Warmer weather this week should improve bug activity, but it can also push afternoon water temperatures and light levels higher. Plan around the late morning through early afternoon window, especially on the Bitterroot and West Fork. Rock Creek and the Blackfoot can fish well later if the big bugs are active and fish stay comfortable.
If you want the safest overall plan, start with the Bitterroot system. If you want the most exciting dry-fly opportunity, look at Rock Creek or the Blackfoot. If you want the cleanest smaller-water option, choose the West Fork.
River Flow Snapshot – June 14, 2026
Current gauge values are based on the latest available USGS and river-flow readings reviewed for this weekly report.
| River | Section | Gauge | Flow (CFS) | Trend / Status |
|---|---|---|---|---|
| Bitterroot | Upper | Near Darby (12344000) | 1,480 | Improving / Fishable |
| Bitterroot | Middle | Bell Crossing nr Victor (12350250) | 2,780–3,060 | Improving / Good Edges |
| Bitterroot | Lower | Near Missoula (12352500) | 3,950 | Elevated / Improving |
| Blackfoot | Lower | Near Bonner (12340000) | 3,010 | Improving / Big Bug Water |
| Clark Fork | Upper | Above Missoula (12340500) | 4,490 | Improving / Edge Water |
| Clark Fork | Lower | Below Missoula (12353000) | 8,310 | Big Water / Improving |
| Rock Creek | Lower | Near Clinton (12334510) | 927 | Improving / Salmonfly Water |
| West Fork Bitterroot | Lower | Near Conner (12342500) | 360 | Clearer / Manageable |
Flows are improving across the region. The best fishing this week will come from banks, riffle edges, side channels, tailouts, and softer holding water where fish can feed without fighting heavy current.
Fly Box of the Week
Dry Flies
- Foam salmonfly dry, size 4–6
- Golden stone dry, size 6–10
- Green drake dry, size 10–12
- PMD emerger or dry, size 14–18
- Yellow Sally dry, size 12–16
- Caddis dry, size 12–16
Nymphs
- Stonefly nymph, size 4–10
- Worm pattern, red or wine
- PMD nymph, size 14–18
- Caddis larva or pupa, size 12–16
- Yellow Sally nymph, size 12–16
- Dark mayfly nymph, size 12–16
Streamers
- Olive streamer, size 4–6
- Black streamer, size 4–6
- Sculpin-style streamer, size 4–6
Hatch and Fly Chart – Mid-June Edition
| Hatch / Insect | Activity | Best Time | Recommended Fly | Size |
|---|---|---|---|---|
| Salmonflies | Strongest on Rock Creek and present on select Bitterroot/Blackfoot water | Midday to afternoon | Foam dry or stonefly nymph | 4–6 |
| Golden Stones | Building across the region | Midday to afternoon | Stone dry or nymph | 6–10 |
| Green Drakes | Important on cloudy windows and soft riffle edges | Late morning to afternoon | Nymph, emerger, or dry | 10–12 |
| PMDs | Building in softer riffles and tailouts | Late morning to afternoon | Nymph, emerger, or dry | 14–18 |
| Yellow Sallies | Active in afternoon windows | Afternoon | Dry or nymph | 12–16 |
| Caddis | Active, best in calm edges and evening windows | Afternoon into evening | Dry, pupa, or larva | 12–16 |
Bug activity is strong, but water type and timing still matter. The most productive dry-fly water will be banks, riffle edges, tailouts, soft seams, and shaded structure where trout can feed comfortably.
Gear Picks of the Week
5-Weight or 6-Weight Rod
A 5-weight is fine for the West Fork and softer Bitterroot dry-fly water. A 6-weight is the better tool for Rock Creek salmonflies, Blackfoot big bugs, streamers, and heavier dry-dropper rigs.
Dry-Dropper Leaders
This is a good dry-dropper week. Big dries can bring fish up, but a stonefly, PMD, or caddis dropper will keep you connected when fish are not fully committed to the surface.
Thermometer + Sun Protection
Warm afternoons are in the forecast. Carry a thermometer, watch for rising water temperatures, and plan your best fishing around the cooler part of the day.
Strategy and Expectations This Week
This is the first report in a while where the region feels like it is shifting from runoff survival toward real early-summer fishing. That does not mean every river is easy. It means anglers finally have more options and more legitimate dry-fly windows.
The Bitterroot system gives anglers the best overall odds, Rock Creek has the best salmonfly and golden stone opportunity, the Blackfoot is improving with big bugs, and the West Fork is the cleanest smaller-water option. A good day this week comes from matching the river, the flow, and the hatch instead of forcing one plan everywhere.
