St. Vrain Creek River Report
St. Vrain Creek River Report
9-29-2026
Flows are still level, which has been nice. Most areas are low, but are fishing well. The Lyons area is also starting to turn back on, but can heat up quickly so don't forget a thermometer. With the rain, hopefully we can leave the thermometers back at home. Fish in all locations will be in the deepest water available. Hatches continue to be midges, BWO's PMD's and Caddis.
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For Dries, use a Super Man Caddis, AR PMD Adult and Emerger, Stimmie, Purple Haze, Foam Run Caddis, AR'S BWO Adult and Emerger, Film Critic, Fin Fetcher Caddis, Dry Humper, Sparkle Dun BWO, Flying Ant, Rosen Para Beetle, Ms Tickle Cripple, and a Chubby Chernobyl.
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For nymphs, use a RS-2, Two Bit Hooker, SOS Nymh, RS-2, Juggaret FB Possum, Juju Baetis, Simple PTN, Arnot's Pocket Drone, AR's Perdigon, 2 Bit Hooker, Kryptonite Caddis, Thin Mint, Jigged Leech, Hot Butt Caddis, Pupa Razi, and Tail Water Tiny.
Guide Rating
3/5
Weather Experienced
- Temperature: Mid 60's (Lyons)
- Wind Conditions: Light breeze
- Precipitation: 30% chance of rain/storms
Water Observations
- Water Temperature: Lower 60's (Lyons)
- Flow Level: 20.40 CFS
- Water Clarity: Light stain
Fly Fishing the St. Vrain
The creek is full of opportunistic fish that are eager to take a dry fly, so take advantage of the great caddis, blue wing olive and terrestrial fishing. The midges that call the St. Vrain home are active all year and are always a safe bet come the colder months of the year. This is a great chance to get out and test some of those midge patterns that you have been drooling over all winter. The Fishing in the town of Lyons can be fantastic.