Ovando to Bonner, Montana

Blackfoot River Hatch Report

Blackfoot River | Ovando to Bonner, Montana | Updated Oct 28, 2026, 7:00 AM MDT | Station: Blackfoot River near Bonner, MT

Focus on slow margins, deep riffle seams, and drop-offs where trout hold in cold water.

Forecast timing & sources
Forecast generated
Oct 28, 2026, 7:00 AM MDT
Valid until
Oct 29, 2026, 7:00 AM MDT
Source updated
Oct 28, 2026, 7:00 AM MDT
Flow observation
Observed Oct 28, 2026, 6:30 AM MDT
Water temperature observation
Observed Oct 28, 2026, 6:30 AM MDT

Buggin combines river and weather signals into a fishing forecast. A rating is model guidance, not a catch guarantee. Observation times can differ from forecast generation.

Configured gauge: Blackfoot River near Bonner · 12340000. The forecast point may differ from the gauge location.

Open in BugginFull Forecast

Today's Read

Water temperatures in the low forties and a rising flow mean trout will be hugging the bottom and feeding primarily on subsurface nymphs and midges. Concentrate your efforts during the warmer midday hours when activity peaks slightly.

Bugs & Best Matches

What's active
Fish this
BWOs, size 16-18, Midday (10:00 AM–2:00 PM)
Sparkle Dun, size 16-18, dry; Pheasant Tail Nymph, size 16-18, nymph; RS2, size 16-18, emerger
Midges, size 18-22, Midday (10:00 AM–2:00 PM)
Zebra Midge, size 18-22, nymph; Griffiths Gnat, size 18-22, dry; Juju Midge, size 18-22
Caddis, size 14-16, Midday (10:00 AM–2:00 PM)
X-Caddis, size 14-16, dry; Elk Hair Caddis, size 14-16, dry; Caddis Pupa, size 14-16, nymph
Stoneflies, size 10-14, Morning (6:00 AM–10:00 AM)
No matching fly supplied
Terrestrials, size 12-16, Evening (6:00 PM–10:00 PM)
No matching fly supplied

How Fish Respond To This Hatch

  • Water temperatures in the low forties and a rising flow mean trout will be hugging the bottom and feeding primarily on subsurface nymphs and midges. Concentrate your efforts during the warmer midday hours when activity peaks slightly.
  • Focus on slow margins, deep riffle seams, and drop-offs where trout hold in cold water.

Current Conditions

Flow697 cfs and rising
Water Temp44°F
WeatherPartly Cloudy
Rating6/10 · Fair