Yakima River Fly Fishing Report - June 14, 2026
YAKIMA RIVER
ReportJUN 14 — 21, 2026
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Flow
—CFS
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Water Temp
—
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Weather
52–92°F
Mostly Clear
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Clarity
Clear
Check post-storm
USGS real-time gauge data is unavailable for this report; per the most recent local shop report (June 7), flows were running approximately 2,590 cfs at Umtanum with green-tinted clarity around 2 feet in the Canyon and water temps in the 55–60°F range. Conditions are wading-friendly and improving as the river stabilizes heading into a warm weekend.
What's Working — Hot Flies
Tungsten Split Case Nymph - PMD
#20
Stealth Link Mercer - PMD
#20
Corn-fed Caddis (CDC) Tan
#20
Corn-fed Caddis (CDC) Olive
#20
Olsen's Straggle Stone Brown Barbless
#12
Tungsten Pat's Rubber Legs - Tan & Brown
#6
Egan's Thread Frenchie Jig - Olive
#12
Pheasant Tail Tungsten
#20
Coffey's CH Sparkle Minnow Sculpin
#6
Bionic Ant 2.0 - Black
#16
Hatch Chart
| Insect | Size | Activity | Prime Time |
|---|---|---|---|
| Pale Morning Dun (PMD) | #16–18 | Strong — nymphs productive all day; dun hatch peaks midday to early afternoon; spinners important late evening | 11:00 AM – 8:00 PM |
| Golden Stonefly | #6–8 | Building — adults hatching midday along rocky banks; nymphs active throughout; does not require crawling to bank to molt | 11:00 AM – 3:00 PM |
| Caddis (Little Sister / Spotted Sedge) | #14–16 | Moderate to strong — pupae active subsurface afternoon; adults skating the surface at dusk | 4:00 PM – Dark |
| Midge | #20–22 | Light background activity — fish in slow tailouts will key on midges during low-light periods | 7:00 AM – 9:00 AM |
| Terrestrials (Ants) | #14–16 | Emerging — with temps climbing to 88–92°F, ant and beetle falls will begin along shaded banks and overhanging brush | 1:00 PM – 5:00 PM |
| Sculpin / Baitfish | #4–6 | Opportunistic — big rainbows and cutthroat hunting tight to structure; most effective early morning and on overcast stretches | 6:00 AM – 9:00 AM |
Best Time Window
- 10:30 AM – 2:00 PM — PMD dun hatch peaks; fish dries and emergers in slower glides and eddies during the warmest part of the day
- 4:00 PM – 7:00 PM — Caddis pupae active subsurface; transition to caddis dries as adults begin skating; terrestrial ant patterns productive along shaded banks
- 7:00 PM – Dark — Evening caddis spinner fall and adult activity; best dry fly window of the day; fish rising trout in the tail-outs and foam lines
Guide's Tip
From the benchWith the Yakima running around 2,500 cfs and clarity at roughly 2 feet in the Canyon, position your indicator rig to keep your nymph within 6 inches of the bottom through rocky runs — that's where the golden stone nymphs are migrating. As temperatures push into the upper 80s and low 90s this weekend, expect the PMD hatch to fire hard between 11 AM and 2 PM on the warmer afternoons; look for rising fish in the shaded, slower water on river-left bends. Shift to caddis dries and ant patterns from 4 PM onward, working tight to the willows and overhanging brush where trout will be sipping in the shade. The evening caddis hatch can be explosive right at dusk — be on the water by 6 PM and stay until dark.
Main Species
Rainbow Trout
Westslope Cutthroat Trout
Mountain Whitefish
