Rock Creek Fishing Forecast
Fly fishers plan Montana trips on the Rock Creek because it stacks credible wading access, recognizable insect cycles, and trout that respond when flows align. Expect classic freestone rhythm: push during stable or dropping flows after fronts, then back off when the river spikes and color returns in 24–48 hours. River-specific intel: Rock Creek is a classic Montana freestone stream, offering excellent fishing for rainbow, brown, cutthroat, and bull trout in a beautiful canyon setting. USGS gauge 12334510 tracks live flow and temperature for planning wade or float days.
The Rock Creek tailwater is sitting at 292 CFS with a stable 57°F°F reading. Today's rating: 6/10. Top pick: a Parachute Adams.
Open 3rd Sat in May — Nov 30
Western District general season
Forecast and on-page guide updated September 8, 2026 (UTC). Open the app for hourly conditions.
Today's Fishing Conditions
Fair
Updated 3:05 PM
57°F
292 CFS
4 AM - 6 AM
Parachute Adams
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Quick Facts
Westslope Cutthroat Trout, Brown Trout, Rainbow Trout, and Brook Trout
freestone
48°F - 58°F
What Makes the Rock Creek Unique?
Signature hatch or window
BWO (Mayfly) is a headline hatch to watch in September. Peak activity often tracks 42–55°F water temps.
Distinctive access
Rock Creek Road: Multiple access points along the road.
Rules anglers miss
Bull trout protected - handle carefully.
September Fishing Tactics
Primary Targets
Recommended Tactics
Excellent fall fishing. Browns aggressive.
September Hatches
BWO
Mayfly
Overcast day fishing. Spring and fall windows.
October Caddis
Caddis
Fall caddis emergence. Orange Stimulators, Sculpzillas.
Caddis
Caddis
Summer evening caddis. Prolific hatches.
Hopper
Terrestrial
Outstanding hopper fishing. Bank edges productive.
Year-Round Fishing Guide
| Month | Water Temp | Tactics |
|---|---|---|
| January | 32-38°F | Deep nymphing, Midges, Streamers |
| February | 33-40°F | Midges, Small nymphs, Deep pools |
| March | 36-45°F | BWO dries, Streamers, Early stonefly nymphs |
| April | 40-50°F | Skwala dries, BWO patterns, Streamers |
| May | 45-55°F | Mother's Day Caddis, Nymphing, Streamers |
| June | 50-60°F | Salmonfly dries, Golden Stones, PMDs |
| July | 55-68°F | PMDs, Hoppers, Caddis, Attractor dries |
| August | 55-70°F | Hoppers, Tricos, PMDs, Terrestrials |
| September(Now) | 48-58°F | BWOs, Streamers, Hoppers |
| October | 40-50°F | Streamers, BWOs, Egg patterns |
| November | 35-42°F | Streamers, Deep nymphs, Egg patterns |
| December | 32-38°F | Deep nymphs, Midges, Slow presentations |
Spawning Seasons
Please respect spawning fish and their redds. Avoid fishing over actively spawning trout.
Brown Trout
Spawn months: October, November
Night spawning common. Males become very dark with pronounced kype during spawn.
Rainbow Trout
Spawn months: March, April
Resident rainbow trout spawn in smaller tributaries and tend to build smaller redds than steelhead.
Brook Trout
Spawn months: September, October
Males develop vibrant red bellies and white-edged fins during spawning. Early fall spawners.
Cutthroat Trout
Spawn months: May, June, July
Spring spawners. Timing varies by subspecies and elevation - coastal populations spawn earlier (Feb-Mar), inland populations later (May-July). Eggs develop for 6-7 weeks before hatching.
Westslope Cutthroat
Spawn months: June, July
Native to northern Rocky Mountain streams. Spawn later than other cutthroat due to high-elevation habitat and colder water. Particularly sensitive to hybridization with rainbow trout.
Access Points & Parking for Rock Creek
Rock Creek Road
Multiple access points along the road.
Dalles Campground
Campground access to quality water.
Hogback
Popular access to productive water.
Mouth
Where Rock Creek enters the Clark Fork.
How to Fish Rock Creek: Tips & Tactics
Rock Creek is a classic Montana freestone stream, offering excellent fishing for rainbow, brown, cutthroat, and bull trout in a beautiful canyon setting.
Best Times of Day
The salmonfly hatch in June is legendary. Summer offers diverse hatches. Fall brings aggressive brown trout.
Recommended Techniques
Wade fishing is the primary method. Match the prolific hatches. Target pocket water and runs. Streamers for larger fish.
Water Conditions
Rock Creek runs through a beautiful canyon. The road provides access. Summer can bring warm water - fish early.
Fly Selection
Salmonfly and stonefly patterns essential. Caddis throughout summer. Hopper patterns late summer. Streamers for browns.
When is the Best Time to Fish Rock Creek?
Spring
Skwala and March browns begin the season.
Summer
Salmonfly hatch in June. Caddis and mayflies follow.
Fall
Brown trout become aggressive. Streamer time.
Winter
Limited but fishable on mild days.
Recommended Equipment for Rock Creek
Rod
9-foot, 5-weight for most fishing.
Line
Floating line for dry flies.
Leader & Tippet
9-foot tapered leader, 4X-5X tippet.
Waders
Breathable waders. Wade carefully in pocket water.
Essential Flies
Rock Creek Fishing Regulations
Season
Open year-round.
Limits
Bull trout must be released. Check FWP for other limits.
Special Regulations
Bull trout protected - handle carefully.
Bait Restrictions
Artificial flies and lures only.
Notes
Rock Creek is Blue Ribbon water.
Always verify current regulations with Montana fish and wildlife agency before fishing. Regulations can change annually.
Fly Shops & Guides Near Rock Creek
Local Fly Shops
- Grizzly Hackle - Missoula
- Missoulian Angler - Missoula
- Rock Creek Fisherman's Mercantile
Guide Services
- Rock Creek Guides
- Grizzly Hackle
- Missoulian Angler Guides
Optimal Fishing Conditions
Optimal Flow
300 - 800 CFS
Best fishing conditions
Optimal Water Temperature
50° - 65°F
Ideal for active trout
Other Rivers You Might Like
Popular forecasts outside Montana—great for trip planning and comparing conditions.
Other Montana Trout Rivers
Bitterroot
Blackfoot
Yellowstone (inside YNP)
Madison
Missouri (below Holter)
Rock Creek — frequently asked questions
When is the best time to fish the Rock Creek?
Excellent fall fishing. Browns aggressive.
What flies should I bring to the Rock Creek?
For the Rock Creek (freestone), carry: Salmonfly, Stimulator, Elk Hair Caddis, Hopper, Woolly Bugger.
What water temperature is best for trout on the Rock Creek?
On the Rock Creek, trout hold between 50° and 65°F. In summer, expect temps to swing with air temperature — fish early.
Do I need a fishing license for the Rock Creek?
Yes — you need a valid Montana fishing license to fish the Rock Creek. Local season: Open year-round.. Daily limit: Bull trout must be released. Check FWP for other limits..
What hatches should I watch for on the Rock Creek in September?
BWO is the signature hatch on the Rock Creek in September. Match size and adjust leader size to 5X-6X. The fish key in on the emergence during low-light hours, so plan to be on the water at first light.
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