St. Vrain Creek River Report
St. Vrain Creek River Report
9-3-2026
The best spot to fish on the Vrain continues to be in the WIld Basin. Flows are low, but decent, the water temps are good all day, and the fish have been pretty willing here! Otherwise, higher elveations on the Vrain have been good, but the water is low and fish can be spooky. The Vrain in Lyons gets hot quick, so do a dawn start here and you're probably good till 10 or so, but bring a thermometer along. Hatches continue to be midges, Drakes, BWO's PMD's and Caddis.
...
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, Agee's Knobler, Furminsky Green Drake, Ms Tickle Cripple, and a Chubby Chernobyl.
...
For nymphs, use a RS-2, Two Bit Hooker, SOS Nymh, Split Case PMD, Juggaret FB Possum, Juju Baetis, Simple PTN, Arnot's Pocket Drone, AR's Perdigon, My Gal Sal, Kryptonite Caddis, Thin Mint, Jigged Leech, Hot Butt Caddis, Pupa Razi, and Tail Water Tiny.
Guide Rating
3/5
Weather Experienced
- Temperature: Upper 80's (Lyons)
- Wind Conditions: Breezy
- Precipitation: None
Water Observations
- Water Temperature: Upper 60's (Lyons)
- Flow Level: 17.70 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.