Catskills, New York
Beaverkill and Willowemoc Creek Fishing Report: June 11, 2026
The Beaverkill is already near the 68 F trout-stress line this morning, so this is a thermometer-first report with only limited early opportunity on cooler water such as the Willowemoc.
- Status
- tough
- Flow trend
- falling
- Best window
- Early morning only where a thermometer confirms safe trout water
- Best methods
- nymphs, dry-dropper, wet flies, dry flies
Quick Summary
The Beaverkill and Willowemoc are low enough to wade, but this is a tough trout report because water temperature is already the main constraint. USGS showed the Beaver Kill at Cooks Falls at 159 cfs, 1.43 feet, and 67.5 F at about 7:30-7:45 AM EDT; Willowemoc Creek near Livingston Manor was 39.9 cfs, 1.96 feet, and 61.0 F at about 7:15 AM EDT. Local Catskills context checked this morning has not posted a new June 11 river note and the newest useful Dette report remains June 8, so use its hatch list only as seasonal context: olives, sulphurs, March Browns, Gray Fox, Blue Sedge and tan caddis, Isonychia, Green Drakes, and evening spinners. If you fish, start early on the coolest water you can verify, keep handling short, and stop targeting trout before the thermometer reaches 68 F.
Conditions Snapshot
| Field | Value |
|---|---|
| Status | Tough |
| Flow | 159 cfs at Beaver Kill at Cooks Falls; 39.9 cfs on Willowemoc Creek near Livingston Manor |
| Gauge Height | 1.43 feet at Cooks Falls; 1.96 feet near Livingston Manor |
| Water Temp | 67.5 F at Cooks Falls; 61.0 F near Livingston Manor |
| Clarity | Not reported by official gauges; low flows call for clear-water tactics unless a local access shows stain |
| Trend | Falling slightly from yesterday morning |
| Best Window | Early morning only where a thermometer confirms safe trout water |
| Best Method | nymphs; dry-dropper; wet flies; dries only over confirmed rises in safe-temperature water |
| Wadeability | Good from a flow standpoint, but low water, warm water, and wary fish require careful approaches and frequent temperature checks |
Weather
For Roscoe, NY, the National Weather Service forecast calls for a high near 88 F with partly sunny skies, west wind around 3-7 mph, and a chance of showers and thunderstorms after mid-afternoon. Tonight has additional shower and thunderstorm chances before patchy fog and a low around 64 F. Friday is forecast to be hot again, with showers and thunderstorms likely later in the day. Heat and lightning are both practical constraints: check water temperature before fishing and leave the river when storms approach.
River Notes
The Willowemoc is the only reasonable first look in this two-water report because it was more than six degrees cooler than the Beaverkill at report time. The Beaver Kill at Cooks Falls was already within roughly half a degree of the 68 F cutoff this morning, which means it may be inappropriate for trout quickly once the day warms. Low flows make crossing and positioning easier, but they also concentrate fish in shaded riffles, faster pockets, and oxygenated seams. If the thermometer shows upper-60s water, do not keep working over trout; shift to colder tailwater-influenced water or call the trout portion of the day.
Hatch Activity
The local hatch list is broad, but temperature should decide the plan before pattern choice. Recent Catskills reports still support olives, sulphurs, March Browns, Gray Fox, Blue Sedge and tan caddis, Isonychia, Green Drakes, Coffin Flies, and evening rusty spinners. With low, warm water, fish actual feeding in shade and broken water rather than waiting through the afternoon over flat pools.
| Hatch | Size | Notes |
|---|---|---|
| Sulphur / Invaria | 14-18 | Useful only where temperatures remain safe; carry emergers, duns, and spinners |
| Isonychia | 10-12 | Nymphs and wets are good in faster seams and riffle margins |
| Blue Winged Olive | 18-22 | Best in shade, small rise forms, or cloudier periods |
| March Brown / Gray Fox | 10-14 | Still worth carrying for broken water and larger mayfly rises |
| Blue Sedge / Tan Caddis | 14-18 | Fish pupa, soft hackles, and adults around riffles and pocket water |
| Green Drake / Coffin Fly | 8-10 | Possible near dusk, but only fish it where big bugs or spinners are actually present and water remains safe |
| Rusty Spinner | 10-20 | Evening option if temperatures allow trout fishing and spinner falls develop |
Recommended Flies
| Category | Fly | Size | Notes |
|---|---|---|---|
| Dry | Sulphur Sparkle Dun or Spinner | 14-18 | Use only over confirmed rises in safe-temperature water |
| Dry | BWO Comparadun | 18-22 | Carry for small, shaded, or cloudy-water rises |
| Dry | Gray Fox or March Brown Comparadun | 10-14 | Search shaded riffles and broken pockets if trout are actively feeding |
| Dry | Tan Caddis or Blue Sedge | 14-18 | Useful around riffle edges and pockets when caddis are active |
| Dry | Green Drake, Coffin Fly, or White Wulff | 8-10 | Reserve for confirmed larger bugs or spinner activity in cool water |
| Nymph | Isonychia Nymph | 10-12 | Work faster seams and riffle margins early |
| Nymph | Caddis Pupa | 14-18 | Dead drift or swing through riffle tails and pocket water |
| Nymph | Pheasant Tail, Frenchie, or Copper John | 14-18 | Good low-water dry-dropper option |
| Wet | Partridge and Yellow or Leadwing Coachman | 12-16 | Swing through broken water when bugs are present but rises are sparse |
Tactics
Start on the coolest verified water, which points to shaded Willowemoc pockets before the Beaverkill today. Fish lightly weighted nymphs, caddis pupa, Isonychia nymphs, soft hackles, or a dry-dropper through faster, oxygenated water where trout can hold without sitting in the warmest pools. If you find rising fish, match size first and keep the presentation quiet; low clear water makes heavy casts and repeated wading costly. Recheck temperatures often, stop before 68 F, and leave open water when thunderstorms develop.
Gauge Links
| Gauge | Flow | Temp | Link |
|---|---|---|---|
| BEAVER KILL AT COOKS FALLS NY | 159 cfs | 67.5 F | USGS 01420500 |
| WILLOWEMOC CREEK NR LIVINGSTON MANOR NY | 39.9 cfs | 61.0 F | USGS 01419500 |
Sources
Official sources checked: USGS stations 01420500 and 01419500, plus the National Weather Service forecast and alerts for the Roscoe, NY area. This report is an original Custom FlyBox summary based on current official gauge and weather data, with local public conditions reports reviewed separately for hatch, access, and method context.