Missouri River Fishing Report – August

It’s August on the Missouri River, and things are rolling along just as expected for late summer. Flows are holding steady around 3,500 CFS, with water temps hanging in the mid-60s. Mornings continue to offer the best action, with fishing tapering off a bit in the afternoons as the sun climbs high and the river warms up. Still, there’s plenty of fun to be had if you stay flexible.

August Dry Fly Report

The big buzz right now? Tricos. If you’re into technical dry fly fishing, now’s the time to sharpen your game. Spinner falls have been happening in the morning hours, and while the fish are feeding, they’re picky and require accurate drifts and good presentations. Long leaders, slack-line casts, and a little patience will go a long way. Pick your fly and put it in their lane!

Outside the trico window, terrestrials are keeping things interesting. Ants, hoppers, beetles, and even smaller attractors like a Parachute Adams or caddis are great options for prospecting, especially when fished on the center river flats or through riffle seams. Don’t be afraid to cover some water with a dry — August fish can be opportunistic and looking up when conditions line up.

Missouri River Nymphing Report

Nymphing continues to produce, particularly in the early hours. The upper rig (Zirdle Bug, Thin Mint Bugger, or crayfish pattern) paired with a smaller dropper — think Tailwater Tiny, Frenchie, Perdigon, or a classic Pheasant tails variations — has been a consistent setup.

The short leash game in the faster, shallower water is absolutely worth your attention this month. It’s a good bet for finding a big fish or two that’s sitting in the shallows and looking for an easy meal. Dry-dropper rigs are another fun way to fish this water, especially when you’re covering productive shorelines and riffles.

August Fly Fishing Notes

August is what it is — hot, dry, and a little slower in the afternoons. But that doesn’t mean the fishing shuts down. You just have to think like a trout: feed in the morning, chill in the heat. Early starts, stealthy approaches, and a willingness to adjust tactics throughout the day will keep you in the game.

The river’s in good shape, crowds are thinning a bit, and there are still plenty of opportunities to find good fish. Whether you’re chasing heads during the trico hatch or hunting big ones with a hopper and a dropper, the Missouri has something for everyone this month. That’s your Missouri River Fishing Report for August.

Tight lines and enjoy these dog days while they last.