Wyoming ·
Lamar River Fly Fishing Report - June 14, 2026
LAMAR RIVER
ReportJUN 14 — 21, 2026
🌊
Flow
—CFS
🌡️
Water Temp
—
☀️
Weather
33–76°F
Partly Cloudy
💧
Clarity
Clear
Check post-storm
USGS gauge data is unavailable for this report date; recent guide reports (June 9) placed flows near 2,790 CFS with slightly murky water that should be clearing to fishable clarity by June 14. Expect cool mornings in the low 30s°F warming to a sunny 70°F afternoon — prime conditions for the first real dry-fly opportunities of the season.
What's Working — Hot Flies
Tungsten Pat's Rubber Legs - Tan & Brown #6
#6
Olsen's Straggle Stone Brown Barbless #12
#12
Wiggly Worm (TBH) #8
#8
Coffey's CH Sparkle Minnow Sculpin #6
#6
Blowtorch - Hare's Ear #12
#12
Tungsten Split Case Nymph - PMD #20
#20
Parachute - Blue Wing Olive #22
#22
Egan's CDC Rainbow Warrior #22
#22
Egan's Frenchie Chironomid #10
#10
Slush Egg Apricot - 14 #14
#14
Hatch Chart
| Insect | Size | Activity | Prime Time |
|---|---|---|---|
| Green Drake (Drunella doddsi) | #10–12 | 🟢 Just firing — first adults expected June 14–15 | Midday, 11 AM – 2 PM |
| Pale Morning Dun (PMD) | #16–18 | 🟡 Emerging — nymphs & emergers most reliable | Late morning, 10 AM – 1 PM |
| Blue-Winged Olive (Baetis) | #18–22 | 🟢 Active — best on overcast or cloudy windows | 11 AM – 4 PM |
| Golden Stonefly (nymph) | #10–14 | 🟡 Building subsurface — adults not yet out | All day subsurface |
| Midge / Chironomid | #20–24 | 🟢 Active in slow backwaters & eddies | Early morning & evening |
| Caddis (Little Brown) | #16–18 | 🔴 Not yet — anticipated as flows drop & water warms | Evening, late June onward |
Best Time Window
- Early morning (7–9 AM): Nymph deep with stonefly and worm patterns in the boulder runs and pocket water while fish are actively feeding before the sun hits the water.
- Late morning to midday (10 AM – 2 PM): Prime dry-fly window — watch for BWO and PMD hatches in the meadow flats; switch to emerger patterns if fish are rising but refusing the dry.
- Evening (6–8 PM): Midge activity picks up in the slow backwaters and eddies; fish a chironomid or small nymph in the softer water as light fades.
Guide's Tip
From the benchThe Lamar is right at the transition from runoff to prime summer fishing — the water is clearing and the first Green Drakes of the season are expected to pop around June 15. Start your morning with a big stonefly nymph or worm pattern fished deep through the boulder gardens and undercut banks while the water is still cool and slightly off-color. As the sun climbs and the river warms toward midday, watch the slower meadow flats for rising fish — BWO and PMD hatches will fire in the 10 AM–2 PM window, especially if clouds roll through. Pack bear spray, stay alert in the Lamar Valley, and keep your approach low and slow — these cutthroats have seen pressure and spook easily in the clear, shallow meadow sections.
Main Species
Yellowstone Cutthroat Trout
Rainbow Trout
