Upper Snake / Eastern Idaho
Big Lost River
Covers Aug 26–Sep 2
Low, clear water makes the Big Lost accessible but demands stealth and smart timing. Fish the morning window hard when Tricos and small mayflies are active.
Current conditions, flows, and hatch notes for Idaho rivers — updated as new reports are published.
Showing 1–20 of 161 reports
Upper Snake / Eastern Idaho
Covers Aug 26–Sep 2
Low, clear water makes the Big Lost accessible but demands stealth and smart timing. Fish the morning window hard when Tricos and small mayflies are active.
South Central Idaho
Covers Aug 26–Sep 2
Low, clear flows on the Big Wood require attention to temperature swings and careful presentation as fall hatches begin to show.
Salmon Region
Covers Aug 26–Sep 2
Low flows and warm water shape the week ahead on the Salmon. Plan early sessions and focus on hatches like hoppers and caddis.
South Central Idaho
Covers Aug 26–Sep 2
Cooler weather and clear water at 93 cfs are improving Silver Creek after summer doldrums. Tricos, Baetis, and Callibaetis should keep you busy through early September.
South Central Idaho
Covers Aug 26–Sep 2
The South Fork is holding at 814 cfs with prime 59-degree water—excellent wade fishing before flows drop in early September. Pinks, Baetis, caddis, and craneflies are working; Flavs, King Prince, and Rubber Legged Stones are solid patterns.
Upper Snake / Eastern Idaho
Flows are moderate and dropping into a comfortable range, with Mutant Stones and small stoneflies active. Overcast skies and light turbidity near the source make for solid midsummer fishing downstream.
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North-Central Idaho
Early steelhead are showing in cooler water running stable at 10,600 cfs and 55°F. Fish skated flies and Scandi setups for steelhead, or work softer edges with lighter rigs for trout.
Panhandle
Heat has slowed fishing on the St. Joe this week, but improving conditions expected as temperatures cool. Flows are running much below normal and stable at 358 cfs.