Idaho Fish Report
Some localized caddis hatches are occurring, but terrestrials will still be the name of the game on the Madison
by Mike Lawson
9-19-2025
208-558-7525
Website
Some localized caddis hatches are occurring, but terrestrials will still be the name of the game on the Madison. Our favorite flies for this area will be hoppers and beetles, with a smaller dry fly trailing (ants, parachute Adams, or even a good old Griffith’s gnat).
More Reports
Henry's Fork Anglers Reports
for Friday, September 19th
Henrys Fork- Box Canyon : The upper river is coming out of Island Park Reservoir at 345 CFS
Henrys Fork- Warm River to Ashton: The lower Henrys is flowing at 1010 CFS near Ashton
Snake River- South Fork: The flow near Irwin is at 8030 CFS, with some fluctuations still occurring
Henry's Fork Anglers Reports
for Friday, August 22nd
Henrys Lake: Flows from Island Park Reservoir are now holding steady around 780 CFS
Henrys Fork- Ashton to St Anthony: Hopper fishing remains strong, especially through the mid and lower stretches
Snake River- South Fork: The hopper bite is excellent right now
Madison River : The Madison is in late-summer mode—hopper/dropper rigs are the go-to for covering water
Teton River: The upper Teton continues to fish well with PMDs and terrestrials
Yellowstone Fish Report: Warm water closures remain in place for the Madison, Firehole, and Gibbon