Montana ·
Madison River Fly Fishing Report - June 14, 2026
MADISON RIVER
ReportJUN 14 — 21, 2026
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Flow
1010CFS
Madison River bl Hebgen Lake nr Grayling MT
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Water Temp
51.8°F
Updated 2026-06-13
☀️
Weather
33–73°F
Mostly Clear
💧
Clarity
Clear
Check post-storm
The Madison below Hebgen Lake is running at 1,010 CFS with crystal-clear, 51.8°F water — ideal for both nymphing and emerging dry fly action. Flows are steady and fishable throughout the river, with caddis building toward peak evening activity and salmonflies beginning to show on the horizon.
What's Working — Hot Flies
Tungsten Pat's Rubber Legs - Tan & Brown #6
#6
Olsen's Straggle Stone Brown Barbless #12
#12
Blowtorch - Hare's Ear #12
#12
Egan's Thread Frenchie Jig - Olive #12
#12
Olsen's Hare's Ear Blowtorch Barbless #20
#20
Juju Baetis Tungsten #22
#22
Egan's Silver Bullet - Baetis #14
#14
Tungsten Split Case Nymph - PMD #20
#20
Corn-fed Caddis (CDC) Olive #20
#20
Corn-fed Caddis (CDC) Tan #20
#20
Parachute - Blue Wing Olive #22
#22
Coffey's CH Sparkle Minnow Sculpin #6
#6
Hatch Chart
| Insect | Size | Activity | Prime Time |
|---|---|---|---|
| Caddis (various species) | #14–18 | 🟢 Active & Building | Late afternoon into evening; best after 4 PM |
| Salmonfly (Pteronarcys) | #4–6 | 🟡 Approaching / Just Starting | Warm midday–afternoon as flows stabilize |
| Golden Stonefly | #8–10 | 🟡 Building | Afternoon, bankside structure and riffles |
| Blue-Winged Olive (Baetis) | #18–22 | 🟢 Active | Midday on overcast days; Monday clouds look prime |
| Pale Morning Dun (PMD) | #16–20 | 🟡 Just Starting | Late morning to early afternoon |
| Midge (Chironomid) | #20–24 | 🟢 Active | Early morning and evening in slow pools and flats |
Best Time Window
- Early Morning (7–10 AM): Nymph deep runs and riffles with stonefly and Frenchie patterns while water temps are coolest and trout are actively feeding subsurface.
- Late Afternoon to Evening (4–8 PM): Prime caddis hatch window — switch to CDC Corn-fed Caddis and Parachute BWO as surface activity builds; best dry fly action of the day.
- Midday Streamer (10 AM–2 PM): Target undercut banks and boulder structure with the Sparkle Minnow Sculpin; big browns are opportunistic and streamer fishing is excellent in the clear water.
Guide's Tip
From the benchWith 51.8°F water and 1,010 CFS of clear flow, the Madison below Hebgen is in prime shape — nymph deep and heavy early in the day with a Pat's Rubber Legs anchor and a Frenchie or Blowtorch dropper. As afternoon temperatures climb toward the 67°F air high, watch the banks carefully for the caddis push, which typically ignites after 4 PM and can produce explosive dry fly action into the evening. Monday's warmer forecast (73°F) may trigger the first serious salmonfly activity, so keep a big stonefly dry in your vest and watch for fish nosing up along the banks near heavy structure. Fish the shaded, slower water during the warmest midday hours and save your energy for the evening caddis hatch — that's when the Madison truly shines this week.
Main Species
Brown Trout
Rainbow Trout
Mountain Whitefish
