August 13, 2026

Boise River

Current conditions for Boise River, Middleton to Eagle Road · Map, access and gauges

Flow

418 cfs

Trend

Steady

Observed

19d ago

Hatch Status

Evenings are still producing PMD's and BWO's, with some Caddis mixed in, mostly smaller fish rising.

Conditions

Water temperatures are climbing into dangerous territory, with afternoon heat shutting down feeding—early morning and late evening sessions will be your most productive windows. As of August 15, flows were running low and stable at 418 cfs. Expect PMDs and BWOs in the evenings along with some caddis, mostly pulling smaller fish. Heavy float traffic is typical right now, so plan your timing accordingly. Consider heavy attractor nymphs, streamers along cutbanks and structure on overcast days, or dries during the early morning and late evening push.

Gauges

Techniques

  • Morning fishing is the way to go as afternoon water temps has practically shut the feeding down.
  • Heavy, attractor nymphs are still the way to go.
  • Streamers can also produce fish on cutbanks and near structure, especially on cloudy and overcast days when the pressure is lower and temps are cooler.

Recommended flies

Heavy attractor nymphsStreamers on cutbanks and near structure on cloudy/overcast daysDries during early morning and late evening hours

Access

Heavy float traffic present.