Green River trout settle into a steady fall pattern

What's biting

What's next

Expect the cooler upstream water to hold its temperature, with the downstream reach staying a few degrees warmer through midday. With a New Moon in play, the darkest nights favor low-light feeding, so early morning and late evening are the windows to plan around. Midday fishing is still worth the effort, especially on bright days when water temps climb toward the upper readings.

Per MidCurrent's Tying Tuesday roundup, a beaded purple nymph is built for low-light, overcast days when high-contrast color does the work your visibility can't. Another pattern in the same roundup, a spare midge-style fly, is called out for clear, pressured water in stillwaters and tailraces. Both suit clear fall flows. The same roundup also covers a pine squirrel jig streamer that bounces the bottom without hanging up, which is a reasonable option in current this strong.

The flow difference between the gauges matters for wading. At 2,610 cfs the lower reach is high and pushy, so favor softer edges and seams over the main current. The upstream reading of 1,880 cfs is more manageable, though still brisk.

Context

Mid-October is typically the heart of the fall season for trout in high-country and tailwater systems like this. Cooling water pushes Brown Trout and Brook Trout toward pre-spawn behavior, which tends to make them more aggressive and more willing to chase streamers. Tailwater temperatures usually stay steadier than free-flowing rivers this time of year, so the readings here look on schedule rather than early or late.

Hatches typically thin out as the season turns, leaving small midges as the dependable insect option. Streamers and nymphs generally take over for covering water. Check state regs before harvesting, since fall closures and special regulations are common on spawning-season trout water.