Daily River Forecast

Madison River

Ennis, Montana

Madison River | Ennis, Montana | Updated September 13, 2026 | Station: Madison River at Ennis, MT

  • Dead drift close to the bottom in riffles and tailouts where trout are holding in the moderate, falling flow.
  • Use Technical Nymphing.
  • Favor Realistic bead-head nymphs and subsurface emerger patterns fished on a long, light fluorocarbon leader..
What's active
Fish this
Baetis, size #16-#18, Afternoon (2:00 PM–6:00 PM)
Jujubee Midge, size #16-#18, dry; Sparkle Dun, size #16-#18, dry; Pheasant Tail, size #16-#18, dry
Caddis, size #14-#16, Afternoon (2:00 PM–6:00 PM)
Elk Hair Caddis, size #14-#16, dry; Caddis Pupa, size #14-#16, dry; Deep Sparkle Pupa, size #14-#16, dry
Midges, size #18-#22, Morning (6:00 AM–10:00 AM)
Zebra Midge, size #18-#22, dry; Griffith's Gnat, size #18-#22, dry; Top Secret Midge, size #18-#22, dry
Terrestrials, size #14-#16, Variable
No matching fly supplied
Stoneflies, size #10-#12, Variable
No matching fly supplied
Flow863 cfs and falling
Water Temp55°F
WeatherClear Night
Rating7/10 · Good

Clear morning conditions on the freestone Madison require precise subsurface presentations to target actively feeding trout.

The Madison runs out of Yellowstone National Park, through Quake Lake and the famed fifty-mile riffle water between Lyon Bridge and Ennis. It is one of the most consistent trout rivers in Montana because dam influence and broad insect diversity keep fish feeding through a wide range of spring conditions.

Most of the river's reputation is built on wild rainbow and brown trout, with strong dry-fly fishing when BWOs, caddis, and stoneflies line up. It is also a river where nymphing covers a lot of water efficiently, especially before the better surface windows show.