Catskills, New York
Beaverkill and Willowemoc Creek Fishing Report: June 10, 2026
The Beaverkill and Willowemoc are low enough to wade but already warm enough to make this a thermometer-first trout report, especially with showers and thunderstorms likely later.
- Status
- tough
- Flow trend
- falling
- Best window
- Early morning only where temperatures are safe; storms and afternoon heat limit the trout plan
- Best methods
- nymphs, dry-dropper, dry flies
Quick Summary
The Beaverkill and Willowemoc remain fishable from a flow and access standpoint, but this is a tough trout report because the freestones are low, warming early, and facing another warm day with afternoon thunderstorms. USGS showed the Beaver Kill at Cooks Falls at 168 cfs, 1.49 feet, and 66.7 F around 7:30-7:45 AM EDT; Willowemoc Creek near Livingston Manor was 39.9 cfs, 1.96 feet, and 60.3 F around 7:15 AM EDT. Local Catskills context from the most recent public report still points to sulphurs, Isonychia, Blue Winged Olives, Light Cahills, tan or gray caddis, and some larger mayfly activity, but the Beaverkill temperature is close enough to the 68 F stress line that the first decision is whether to fish at all. If you fish, start early, carry a thermometer, handle fish quickly, and stop targeting trout before the water reaches 68 F.
Conditions Snapshot
| Field | Value |
|---|---|
| Status | Tough |
| Flow | 168 cfs at Beaver Kill at Cooks Falls; 39.9 cfs on Willowemoc Creek near Livingston Manor |
| Gauge Height | 1.49 feet at Cooks Falls; 1.96 feet near Livingston Manor |
| Water Temp | 66.7 F at Cooks Falls; 60.3 F near Livingston Manor |
| Clarity | Not reported by official gauges; low flows call for clear-water approaches unless a local access shows stain |
| Trend | Falling from yesterday morning |
| Best Window | Early morning only where temperatures are safe; storms and afternoon heat limit the trout plan |
| Best Method | nymphs; dry-dropper; dry flies during actual rise windows |
| Wadeability | Good from a flow standpoint, but low water calls for quiet approaches, careful fish handling, and temperature checks |
Weather
For Roscoe, NY, the National Weather Service forecast calls for a high near 82 F with mostly cloudy skies, a chance of showers, and showers and thunderstorms likely by mid to late afternoon. South wind should run about 2-7 mph. Tonight is forecast to bring showers and thunderstorms early, then patchy fog and a low near 63 F. Lightning and quick runoff are real constraints today; leave exposed water before storms arrive.
River Notes
The Willowemoc is the better first look if you are determined to stay on freestone trout water, because it was about six degrees cooler than the Beaverkill at report time. The Beaverkill at Cooks Falls was already within roughly a degree of the 68 F cutoff early this morning, so it may become inappropriate for trout quickly. Low flows make wading easy, but they also concentrate fish in faster, shaded, oxygenated lanes and make careless approaches more disruptive. If a thermometer shows upper-60s water, shift to colder tailwater-influenced water or stop trout fishing for the day.
Hatch Activity
The bug list is broad, but water temperature should decide the plan before the hatch chart does. Sulphurs, Isonychia, Blue Winged Olives, Light Cahills, tan or gray caddis, March Browns, Gray Fox, and some Green Drake/Coffin Fly activity are all possible in the region. With low flows and warm water, prioritize actual feeding in shaded riffles and pockets rather than waiting over flat pools in the afternoon heat.
| Hatch | Size | Notes |
|---|---|---|
| Sulphur | 14-18 | Important late-day mayfly where temperatures remain safe; carry emergers, duns, and spinners |
| Isonychia | 10-12 | Nymphs and wets are useful in faster seams and riffle margins |
| Blue Winged Olive | 18-22 | Useful in shade, over small rises, or if clouds and showers keep fish comfortable |
| Light Cahill | 14-16 | Good over pale rise forms near evening if water temperatures stay safe |
| March Brown / Gray Fox | 10-14 | Still worth carrying for broken water and larger mayfly rise forms |
| Tan or Gray 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 spinner falls are actually present and temperatures are safe |
Recommended Flies
| Category | Fly | Size | Notes |
|---|---|---|---|
| Dry | Sulphur Sparkle Dun or Spinner | 14-18 | Use when lighter mayflies bring fish up and temperatures remain safe |
| Dry | Light Cahill Comparadun or Spinner | 14-16 | Good evening option over pale rise forms |
| Dry | Gray Fox or March Brown Comparadun | 10-14 | Search riffles, pocket seams, and shaded broken water |
| Dry | BWO Comparadun | 18-22 | Carry for shaded, cloudy, or selective fish |
| Dry | Tan Caddis or Blue Sedge | 14-18 | Useful around riffle edges and pockets when caddis are active |
| Dry | Green Drake or Coffin Fly | 8-10 | Reserve for confirmed big-bug or spinner activity in safe-temperature water |
| Nymph | Isonychia Nymph | 10-12 | Work faster seams and riffle margins during slow surface periods |
| 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 dry-dropper choice for low, clear pockets |
| Wet | Partridge and Yellow or Leadwing Coachman | 12-16 | Swing when bugs are present but rises are scattered |
Tactics
Start on the coolest water you can verify, which likely means shaded Willowemoc pockets before the Beaverkill today. A dry-dropper, Isonychia nymph, caddis pupa, Pheasant Tail, or soft hackle is the better search tool before fish commit to the surface. If you find safe-temperature risers, lengthen the leader and match size first; small olives, caddis, or sulphurs may beat a large imitation over low clear water. Recheck temperature often, stop fishing trout before 68 F, and leave the river when thunderstorms approach.
Gauge Links
| Gauge | Flow | Temp | Link |
|---|---|---|---|
| BEAVER KILL AT COOKS FALLS NY | 168 cfs | 66.7 F | USGS 01420500 |
| WILLOWEMOC CREEK NR LIVINGSTON MANOR NY | 39.9 cfs | 60.3 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.