Truckee trout turn to small bugs as fall cools the river

What's next

Expect the small-bug focus to hold as the river keeps cooling. The late-September report has trout keying on BWOs and midges, so start there, with caddis as a secondary option while a few remain on the water. Check the local gauge and read the water before committing to a stretch, since conditions can change quickly as the season turns.

The Reno Fly Shop league runs Saturday mornings from 8am to noon on the Truckee near the shop through October 31, so plan weekend mornings around it.

Context

Early October is the turn from summer to fall on Sierra trout water. Typical for this stretch of the year: cooling water, feeding shifting from larger summer food to smaller mayflies and midges, and fall spawning activity on some streams, which can make fish less willing to chase. As flows and temperatures settle, small patterns usually outperform attractors. Fish in cooler water generally hold in slower runs and tailouts, where a small drifted fly is easier to present. Wind and cold snaps can shift the bite from one day to the next. Check CDFW regulations and any seasonal closures before fishing, since rules vary by water.