Douglas / Jefferson County, Colorado
Cheesman Canyon
Live Conditions
Cheesman Canyon — Below Cheesman Reservoir
7-Day Flow
↑ Rising
24-Hr Pressure
23.35 inHg · → High/stable
Local Weather
Tough conditions — fish deep
Today
☁️Overcast
87° / 57°
Tomorrow
☁️Overcast
85° / 57°
Fri
🌧️Rain
86° / 58°
0.16"
Sat
🌦️Drizzle
82° / 60°
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.
9
Time of Day
Using: 72.4 CFS · BWOs returning strongly
What should I pack?
Rod, flies, tippet, and safety gear specific to today's Cheesman Canyon conditions.
🪰 Hatch Calendar
Cheesman Canyon · September · Early Fall
Showing typical dates — water temperature data unavailable for live hatch predictions.
Select month
BWOs returning strongly (size 18-20). BEST MONTH — cool canyon temps, clear water, active fish, minimal pressure. September on Cheesman Canyon is the reward for the effort. Plan the full day.
River Map
About Cheesman Canyon
Remote Gold Medal South Platte canyon reached only by the 5-mile Gill Trail (#610). Clear, low-gradient water demands 6-7X tippet, accurate casts, and full stealth. One of the most technically demanding — and rewarding — fisheries in Colorado. The hike keeps pressure low year-round.
Learn More
Guides to help you fish Cheesman Canyon with more confidence.
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…
How to Read a USGS Stream Gauge
CFS, gauge height, and why the number on your phone screen determines whether your day is going to be great or a waste of a drive.
How to Pick the Right Fly
Match the hatch is real — but it's not magic. Here's a practical system for choosing between nymphs, dries, and streamers that actually works on…