St. Vrain Creek River Report
St. Vrain Creek River Report
8-13-2026
So far, the Vrain hasn't benefited from recent storms, and flows on all the forks are still pretty low. This has made fishing tough, but it can still be done. In Lyons, temps can still get hot quick, so start early and carry a thermometer. This stretch has been through a lot over the last few years, so lets all protect this stretch to ensure continued fishing opportunities. Otherwise the Vrain in the Park, as well as the South and North Forks have been fishing good, and while a bit low, still are plenty fishable, and have had water temps in the safe ranges all day, especially if you go as high as possible. Use a tactical approach here to avoid spooking fish. The fish aren't usually picky, but do spook super easily. Hatches continue to be midges, Drakes, BWO's PMD's and Caddis.
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For Dries, use a Super Man Caddis, AR PMD Adult and Emerger, Griffith's Gnat, Purple Haze, Foam Run Caddis, AR'S BWO Adult and Emerger, Film Critic, Fin Fetcher Caddis, Dry Humper, Sparkle Dun BWO Furminsky Green Drake, Ms Tickle Criple Drake and a Chubby Chernobyl.
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For nymphs, use a RS-2, Two Bit Hooker, SOS Nymh, Split Case PMD, Juggaret FB Possum, Juju Baetis, Tung TNT, Crust Nymph, AR's Perdigon, Kryptonite Caddis, Thin Mint, Jigged Leech, Pupa Razi, and Tail Water Tiny.
Guide Rating
3/5
Weather Experienced
- Temperature: Upper 70's (Lyons)
- Wind Conditions: Light breeze
- Precipitation: 70% chance of storms
Water Observations
- Water Temperature: Upper 60's (Lyons)
- Flow Level: 21.70 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.