Missoula
Clark Fork River
Live Conditions
Clark Fork River — Above Missoula
7-Day Flow
↑ Rising
24-Hr Pressure
26.63 inHg · → High/stable
Local Weather
Tough conditions — fish deep
Today
☁️Overcast
72° / 44°
Tomorrow
☁️Overcast
82° / 48°
Fri
🌦️Drizzle
77° / 55°
0.03"
Sat
🌧️Rain
68° / 54°
0.35"
Cold front incoming — go deep with nymphs, surface activity likely slow.
Weather by Open-Meteo · No API key · Updated every 30 min
What should I fish today?
⚡ AIAI-powered recommendation using today's live flow, temperature, and hatch data.
2
Time of Day
Using: 697 CFS · 54.1°F · Hopper season continuing early month. BWOs returning
What should I pack?
Rod, flies, tippet, and safety gear specific to today's Clark Fork River conditions.
🪰 Hatch Calendar
Clark Fork River · September · Early Fall
🟢 Active now at 54.1°F water
🟡 Approaching — within 5°F of trigger range
Select month
Hopper season continuing early month. BWOs returning (size 18-20). Cooling water, active fish, fall colors through Hellgate Canyon. Best dry fly month for selective fish.
🟢 Active · 🟡 Approaching · ⚪ Seasonal only
River Map
About Clark Fork River
Big-water freestone draining western Montana — the Clark Fork picks up the Bitterroot, Blackfoot, and Rock Creek before pushing north to the Idaho line. Wild trout fishery recovering from a century of mining damage, now one of MT's best.
Regulations
Bull trout federally protected — release immediately and unharmed; do not target them. Standard Montana fishing license required.
Learn More
Guides to help you fish Clark Fork River with more confidence.
Montana Fishing Regulations for Fly Anglers
Montana's Conservation License prerequisite and AIS pass, the third-Saturday-in-May to November 30 general stream season, blue-ribbon special regs on…
Trout Species of Montana
Montana's six salmonids and how to tell a harvestable brown from a release-required cutthroat or a protected bull trout. Missouri and Yellowstone…
Seasonal Guide to Montana Fly Fishing
Montana rivers are a completely different game each season — Salmonfly in late May, PMD and caddis in July, technical Trico on the Missouri in…