Small Streams

 

SMALL STREAMS

Report
JUL 30 — AUG 6, 2026
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Flow
CFS

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Water Temp

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Weather
53–90°F
Sunny then Patchy Smoke
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Reported By
Bruce Staples

The Teton River is running clear and cold at normal flows with all boat ramps open, while area creeks range from excellent spring-fed conditions on Birch Creek to warming, slowing flows on the upper Blackfoot and Little Lost River. Sunny skies and a high near 87°F today give way to a slight chance of evening thunderstorms, with temperatures climbing to 90°F by Friday.
From the ShopMadison Losee · July 30, 2026

Great fly fishing remains in the Teton River. All boat ramps are open, water is clear, cold, and of normal flow. Be wary of recreational floaters. Dry-dropper rigs using PMD life cycle patterns with yellow sally and a few golden stone patterns should be in that fly box. Caddis flies take over during evenings. Large dry attractor patterns will bring up fish from sheltering canyon waters. These waters heat up most quickly on the river, so play and release those trout gently.

From Hog Hollow downstream, PMDs are active during daytime hours with caddisflies active in the evening. Many creeks are beginning to warm enough to slow activity of hosted trout. Palisades Creek is one of the slowest to warm because of cool subsurface water coming in from Lower Palisades and Upper Palisades Lakes. McCoy and Bear Creeks are in good dry fly conditions with PMDs, yellow sally, and caddis activity resulting in feeding trout.

Fishing in the upper Blackfoot River may level off a bit because of low, warm flow. Early in the day is the best time to fish here. Terrestrial insects presented close to banks and at the head of large holes will interest the cutthroat present there. Birch Creek remains good fly fishing because of numerous springs flowing into it. Fishing on the Little Lost River drainage will be over in the next few weeks as it tends to warm significantly and decrease in flow as mid-summer approaches.

Hatch Chart
Insect Size Activity Prime Time
PMD (Pale Morning Dun) #16–18 Active Daytime (Teton River, Hog Hollow downstream; McCoy & Bear Creeks)
Caddis #16–18 Active Evenings (Teton River, McCoy & Bear Creeks)
Yellow Sally (Small Stonefly) #14–16 Active Daytime (Teton River, McCoy & Bear Creeks)
Golden Stonefly #8–10 Tapering Daytime (Teton River)
Terrestrials (Ants, Hoppers) #10–14 Active Midday–Afternoon (upper Blackfoot River, bank edges)
Best Time Window
  • EARLY MORNING (first light–9 AM): Best window for the upper Blackfoot River before low, warm flows slow activity — fish terrestrials tight to banks.
  • MIDMORNING–AFTERNOON (9 AM–5 PM): Prime PMD dry-dropper time on the Teton River from Hog Hollow downstream and on McCoy and Bear Creeks.
  • EVENING (5 PM–dark): Caddis take over on the Teton and area creeks — switch to a caddis dry and be off the water before isolated thunderstorms possible after 8 PM tonight.
Guide's Tip
From the benchOn the upper Blackfoot River, heat and low flows mean you need to be on the water early — fish terrestrials like ants and hoppers tight to the banks and at the heads of holes before the sun gets high. The field report also calls for yellow sally patterns in the dry-dropper rig on the Teton and area creeks; if you need a dedicated yellow sally dry or soft hackle not listed in our catalog, ask at the shop counter and we'll sort you out.
Main Species

Brook Trout

Yellowstone Cutthroat Trout

Rainbow Trout
Report generated July 30, 2026 — Next update: August 6, 2026