Cody / Clark
Clarks Fork of the Yellowstone
Live Conditions
Clarks Fork of the Yellowstone — Near Belfry, MT
7-Day Flow
↓ Falling
24-Hr Pressure
25.84 inHg · → High/stable
Local Weather
Tough conditions — fish deep
Today
☀️Clear sky
72° / 42°
Tomorrow
☁️Overcast
78° / 47°
Fri
🌦️Drizzle
82° / 56°
0.03"
Sat
🌦️Drizzle
65° / 55°
0.09"
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: 109 CFS · HOPPER SEASON continuing
What should I pack?
Rod, flies, tippet, and safety gear specific to today's Clarks Fork of the Yellowstone conditions.
🪰 Hatch Calendar
Clarks Fork of the Yellowstone · September · Early Fall
Showing typical dates — water temperature data unavailable for live hatch predictions.
Select month
HOPPER SEASON continuing (size 8-12). BWOs returning (size 18-20). Cooling water, active fish. Fall colors through the canyon spectacular and uncrowded — far from Cody crowds.
River Map
About Clarks Fork of the Yellowstone
Wild & Scenic freestone draining the Beartooth Plateau through a dramatic canyon north of Cody. Cutthroat and brown trout in pocket water and pools — a less-traveled alternative to the nearby Shoshone with strong stonefly and hopper fishing.
Regulations
Standard Wyoming trout regulations apply; cutthroat trout are the primary species, and the upper reaches near Crandall may carry catch-and-release rules. Wyoming Game & Fish license required. Verify current regs at wgfd.wyo.gov before fishing.
Learn More
Guides to help you fish Clarks Fork of the Yellowstone with more confidence.
Trout Species of Wyoming — A Fly Angler's Field Guide
Wyoming holds native Cutthroat subspecies found nowhere else on Earth. How to identify Snake River Finespotted, Yellowstone, and Colorado River…
Wyoming Fishing Regulations for Fly Anglers
Licenses, the Conservation Stamp, year-round seasons, no trout stamp, and the river-specific rules that matter on the Grey Reef, Snake, and Bighorn.
How Barometric Pressure Affects Fishing (And How to Use It)
That gorgeous bluebird day after a cold front? Worst fishing of the year. Here's the data behind why pressure changes matter more than the weather…