St. Vrain Creek River Report

St. Vrain Creek River Report

8-8-2025

Flows continue to drop, and in Lyons and in the South Fork can get hot quick. Protect the resource here, and do a early start, or fish the South Fork which has considerably better water temps.  As per usual, expect some company in the Lyons area via tubers and swimmers. However, school will start soon, opening up more areas on the week days to fish. Hatches continue to be midges, PMD's, Drakes, BWO's, and Caddis. 

...

For Dries, use a AR's March Brown, Green Drake Colorado, AR's PMD, Ferminsky Drake, Superman Caddis, High Vis BWO, Twisted Caddis, and a Hippy Stomper.

...

For nymphs, use a Hun Caddis Pupa, Two Bit Hooker in Green Drake, Split Case PMD, BH Peacock Nymph, Juju Baetis, Bubble Back Emerger in PMD, Rock Grinder, AR's Perdigon, Simple PTN, Thin Mint, Jigged Leech, Panty Dropper PMD, and Sweet Meat Caddis.

Guide Rating

4/5

Weather Experienced

- Temperature: Mid 80's

- Wind Conditions: Light and variable

- Precipitation: 30% chance of PM storms

Water Observations

- Water Temperature: Mid 60's (Lyons)

- Flow Level: 37.0 CFS

- Water Clarity: Near crystal clear

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.