Where to Go Arkansas River – Pueblo

Open 9 am to 6 pm Daily

Report Date: 10/20/2026

Current Conditions:

Flows coming out of the reservoir remain low and clear through the concrete and urban corridor. Trout are actively holding in deep ledge drop-offs, structured riprap banks, and the soft tailouts below the hatchery outflow. Fish are well-distributed across the main channel, with brown trout beginning to stage over shallow gravel zones as pre-spawn behavior ramps up.

Guide Report:

KENNY ROMERO - 10-18-2026

Slow in AM, Good Afternoon on PMD's and Gray RS2

TED DEMETIOU - 10-17-2026

Flows were up and down. Lots of BWO's and Caddis on the Bottom. Buckskins and Graphic Caddis with a few eats on Baetis patterns.

JUAN RAMIREZ - 10-16-2026

Heavy Caddis hatch today! Very few tricos with cold temperatures. There will be more as it warms up.

Weather:

Short Term -

High-plains autumn conditions over the next 3 days will feature abundant sunshine, with warm daytime highs reaching the upper 60s to low 70s. Morning air temperatures open crisp in the low-to-mid 40s before rising rapidly by mid-morning. Thursday will be cloudy, which should bring more BWO activity on the river.

Long Term -

Extended high-plains forecasts over the next 10 days point to a stable fall trend, with highs gradually easing into the mid-60s and crisp nights around 40°F. Reliable tailwater releases out of Pueblo Reservoir will keep water temperatures steady despite the shifting air, preserving predictable midday feeding windows and active midge and Baetis activity well into the coming weeks.

Hatches:

Micro-midges (#22–#26) remain the most dependable year-round staple, hatching continuously through the morning hours and drawing trout into shallow foam pockets. Fall Blue-Winged Olives (#20–#22) emerge selectively during overcast stretches, providing crisp dry-fly opportunities in soft tailouts. The late-summer Trico hatch is winding down significantly, though brief spinner falls may still prompt sporadic morning risers along slow eddies. Terrestrial activity has largely run its course, though an occasional ant or beetle pattern fished close to bankside brush can still trigger opportunistic strikes.

Tactics:

Low, gin-clear tailwater flows demand a disciplined, stealth-first approach. Lengthen your rigs to 9 to 12 feet and taper down to 5X or 6X fluorocarbon tippet to avoid lining cautious fish in glassy, slow-moving glides. Focus on dead-drifting deep nymph setups through primary ledge drop-offs, plunge slots, and soft current seams created by stream improvements.
When dam adjustments or rain events cause flow spikes and off-color water, shift away from delicate micro-midge rigs. Bump your tippet up to 4X or 5X and target soft, shallow bank seams, boulder eddies, and inside turns where trout step out of heavy main-channel currents to rest. Increased water stain strips away the fish's low-water caution—making dead-drifted dark leeches, San Juan worms, or mini-streamers like Slumpbusters swung tight along the edges exceptionally effective.

Tips:

Photo by Ted Demetriou