Free Resource · Updated 2026
The Teton River flows west from the Teton Mountains through the farmland and canyon of eastern Idaho. It holds cutthroat and brown trout in a mix of riffles, pools, and undercut banks. The river is less famous than its Wyoming neighbors but fishes well through the summer. PMD and Caddis hatches are reliable and hopper fishing is excellent.
Teton River Hatch Calendar — Quick Reference
The Teton River flows from high in the Teton Range through the Driggs and Victor area before entering its canyon section below Felt. The canyon section is the most productive and holds the largest fish. Access requires some hiking but the water is excellent and the fish are willing.
Cutthroat dominate the upper river and the canyon. Brown trout are more common in the lower sections near the confluence with Henry's Fork. Both species respond well to dry flies and the river is not heavily pressured compared to nearby fisheries.
PMDs hatch from late June through August and provide reliable morning fishing. Caddis are active through May and June in the riffled sections. Hopper fishing is excellent in the canyon from August through September. October Caddis bring fish to the surface in September and October on the lower river.
See the full Idaho Fly Hatch Chart for hatch timing across all of Idaho's top trout streams.
Check Conditions Near Teton RiverWhat to Fish
PMDs are the most reliable summer hatch on the Teton River. The hatch fires mid-morning in late June and continues through August. Fish the riffles and the runs below riffles where trout hold during the hatch. A Comparadun or Sparkle Dun in size 16 is the go-to pattern. Evening spinner falls can be equally productive.
Recommended: #16-18 Comparadun, Sparkle Dun
The canyon section of the Teton River is excellent hopper water in August and September. High grass banks and warm afternoons set the stage for hopper-crunching cutthroat and brown trout. Fish a big foam hopper close to the bank in the late afternoon and hold on. A dropper nymph adds coverage when fish are not looking up.
Recommended: #8-12 Dave's Hopper, Chernobyl Ant
October Caddis emerge on the lower Teton River in September and October. These large, orange caddisflies draw big fish to the surface in the afternoons. Fish a size 8 or 10 orange Stimulator or October Caddis pattern near the banks and in the slower sections. The fish are aggressive during this hatch and the takes are unmistakable.
Recommended: #8-10 October Caddis, Stimulator
FlyFishFinder combines hatch knowledge with live gauge alerts, Prime condition indicators, and real angler intel so you show up on the right day, not the wrong one.
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