Fishing Outlook & Conditions
Water Temp:
62
Orvis Avon's Tip of the Week
Before you step foot in the river take a water temp! Look for water temps below 68 degrees and ideally temps below 66, the colder the better for catch and release! The evening dry fly action has been okay but flows are lower and fish are still looking up to Isos, Caddis, Ants and large terrestrials even when there is not an active hatch going on.
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Water Flow Data
Orvis-Endorsed guides nearby
Antoine Bissieux5-Day Outlook as of 8/17/26
Today (August 17th) the flow coming out of the dam in Riverton is normal/low at 150cfs and the Still river is adding an additional 18cfs making for a medium-low flow of 168cfs in the TMA. Expect flows to stay consistent through the week.
Techniques & Tips as of 8/17/26
Fishing dries and nymphs are the two best ways to catch fish right now with streamers taking a little bit of a backseat with these lower flows but don't be afraid to mix up your techniques. Nymphing is good regardless of the time of day and there are plenty of ways to do it. Tightline nymphing is great but the dry-dropper fishing is excellent right now and you can still definitely run an indicator rig with plenty of success. With the flows being low and clear it's not a bad idea to downsize tippets to 6x for nymphs/dries unless you're throwing a larger fly like an Isonychia.
Local Species Available January 1 - December 31 (Prime: April 1 - November 1)
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Trout
Orvis Avon's Recommended Fly Patterns
"Must-have" fly fishing patterns in descending order of importance:
| Name: | Colors: | Size(s): |
|---|---|---|
| Dave’s Oh-So-Iso | Slate | 10-14 |
| CDC Caddis | Olive/Tan | 14-18 |
| Indicator Spinner - Trico | Black | 22-24 |
| Bead Head Brassie | Black,Red,Olive | 18-24 |
| Jig Sculpin | Olive | 10 |
| Croston's Micro Sculpin | Tan/Olive | 12 |
| Quasimodo Pheasant Tail | BROWN | 16-20 |
| Tungsten Twisted Tactical May | Brown/Olive | 16-20 |
| Traditional nymphs(pheasant tails, princes) | brown, olvie, white | 16-22 |
| BWO Nymphs | Olive | 16-20 |
Orvis Avon's Recommended Gear
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Best Leader:
Super Strong Plus Leaders
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Best Tippet:
SuperStrong Plus Tippet in 30- and 100-meter spools
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Best Fly Fishing Rod:
4-Weight 10' Fly Rod
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Best Floating Fly Line:
WF Trout Fly Line
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Best Sinking Fly Line:
Bank Shot Sink Tip Fly Line