Poudre Canyon: Rustic to Fort Collins

Poudre Canyon — Fishing Report for April 27, 2026

Quick Stats

Flow: 173 CFS | Trend: Rising | Fishability: Good | Weather: Chance snow showers, high 46°F

The Bite

If you've been waiting for the right day to chase BWOs on the Poudre, this might be it. Cold, overcast skies with snow showers are textbook conditions for Baetis hatches — the low light and cool air keep adults on the water longer and trout looking up. Expect the best surface activity between noon and 4 PM as cloud cover holds and temps nudge toward the mid-40s. This is the kind of gray, miserable-looking day that produces some of the best dry fly fishing of the year on freestone water.

At 173 CFS and rising at a modest 7.5% over the past 24 hours, the river is in a comfortable mid-range. It's worth noting that this is a dry water year across the basin — snowpack is well below normal — which means the spring runoff pulse will likely be shorter and milder than usual. That's actually good news: the fishable window may extend a bit longer than a typical late April, and blowout conditions are less likely to arrive with the same fury. Still, flows are trending up, and once the gauge climbs past 300 CFS consistently, the pre-runoff window starts closing. Fish it while it's good.

Midges should be active in the morning before the BWO window opens. Keep an eye on sunny rock faces and streamside boulders for Little Black Stonefly adults — on a day like today they may be less visible, but the nymphs are active in the riffles regardless.

What to Fish

• Parachute BWO #18-20 — Primary dry fly during the midday hatch window. Fish it with a drag-free drift through the slower water above riffles and in tailouts.
• RS2 #20-22 (olive or gray) — Deadly as a dropper or standalone nymph. Trail it 16-18" below a Parachute BWO or fish it under an indicator in deeper runs.
• Sparkle Wing RS2 #20 — Excellent emerger option when fish are sipping just under the film during the BWO hatch.
• Pheasant Tail #16-18 — Solid all-day nymph in riffles and pocket water. Add a small split shot to get it to the bottom.
• Black Stonefly Nymph #14-16 — Worth cycling through riffled pocket water, especially in the upper canyon sections.
• Pat's Rubber Legs #8 — Anchor fly for a double-nymph rig in deeper boulder pockets when you want to cover water efficiently.

Tactics & Rigging

For the BWO window, rig a Parachute BWO #18-20 on 5X with an RS2 or Sparkle Wing RS2 dropped 16" below on 6X fluorocarbon. This dry-dropper setup covers both the surface and the film simultaneously — critical when fish are keyed on emergers rather than fully-hatched duns. Focus your casts on the slower water at the edges of riffles, foam lines, and the flat tailouts of pools where trout can hold and feed without fighting current.

Outside the hatch window — morning and any lulls in BWO activity — go to a double-nymph rig with a Pat's Rubber Legs on point and a Pheasant Tail or RS2 trailing 14" behind. Use enough weight to tick bottom through the deeper boulder pockets. The canyon sections between the Narrows and Rustic tend to hold the best BWO water; the pocket water character there gives fish plenty of ambush lies and makes presentations forgiving.

Access & Logistics

Highway 14 provides easy pulloff access the length of the canyon — no long hikes required. Snow showers today may make some pulloffs and informal paths slippery, so watch your footing on the granite. Wading in 173 CFS is manageable but the river is pushing; felt-soled boots or studs are worth it on the slick canyon rock. Water temps aren't available from the gauge today, but expect cold water — handle fish quickly and keep them in the water during release.

The Cache la Poudre is Colorado's only federally designated Wild and Scenic River — treat it accordingly. Verify current regulations with CPW before fishing, as the canyon has multiple regulation zones with different rules. Stop by St. Peter's Fly Shop in Fort Collins for flies, local intel, and to support the shops that keep this fishery healthy.

Looking Ahead

Snow showers are expected to continue through Tuesday with overnight lows around 30°F — that cold, overcast pattern should sustain solid BWO activity for at least another day or two. By Wednesday, partial clearing and a high of 52°F may shift conditions; watch the gauge closely as warming accelerates the slow rise already underway.