Fly fishing · MT · Western Montana

Clark Fork River: hatch chart + live conditions

Recovering river through Missoula and western Montana. Bull trout present; handle with care. Good caddis and PMD hatches in summer. Flows through beautiful mountain terrain.

Current conditions: Checking USGS… USGS site 12354500

Top 3 dry flies for July

1
Elk Hair Caddis fly pattern
Size 12-16 · dry
Matches active hatch: caddis.
2
Stimulator fly pattern
Size 10-14 · dry
Matches active hatch: caddis.
3
Trico Spinner fly pattern
Size 20-24 · dry
Matches active hatch: trico.

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12-month hatch chart

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Frequently asked

What are the best months to fish the Clark Fork River?

Best months: May, June, July, August, September, October.

What flies hatch on the Clark Fork River in July?

Active hatches this month: caddis, terrestrial, trico, pale morning dun.

What species are in the Clark Fork River?

Primary: rainbow trout, brown trout, bull trout. Recovering river through Missoula and western Montana. Bull trout present; handle with care. Good caddis and PMD hatches in summer. Flows through beautiful mountain terrain.

Are there special fishing regulations on the Clark Fork River?

No special-regulation section is listed here, so standard Montana trout regulations apply. Check MT FWP before fishing.

How do I check live water conditions on the Clark Fork River?

The live USGS reading is shown at the top of this page (site 12354500). It refreshes hourly.

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