Catskills, New York
Beaverkill and Willowemoc Fishing Report: July 4, 2026
The Beaverkill is already too warm for trout and the low Willowemoc has almost no margin before afternoon storms and more July heat.
- Status
- unsafe
- Flow trend
- falling
- Best window
- Skip freestone trout fishing; use cold tailwater or warmwater alternatives
- Best methods
- skip warm trout water, cold tailwater alternatives, warmwater options
Quick Summary
Skip the Beaverkill and Willowemoc for trout today. USGS showed the Beaver Kill at Cooks Falls at 109 cfs and 75.9 F during the morning check, which is far beyond the 68 F trout-stress threshold. The Willowemoc near Livingston Manor was 27.2 cfs and 67.8 F, meaning even the cooler creek is low and sitting right on the edge before the day warms. If you are in the Roscoe area, choose the cold West Branch or another cold tailwater for trout, or switch to reservoirs and warmwater species.
Conditions Snapshot
| Field | Value |
|---|---|
| Status | Unsafe for trout on the Beaverkill; not recommended on the Willowemoc because it is low, nearly 68 F in the morning, and facing another warm day |
| Flow | 109 cfs at Beaver Kill at Cooks Falls; 27.2 cfs at Willowemoc Creek near Livingston Manor |
| Gauge Height | 1.11 feet at Cooks Falls; 1.86 feet near Livingston Manor |
| Water Temp | 75.9 F at Cooks Falls; 67.8 F near Livingston Manor during the morning USGS check |
| Clarity | Not reported by official gauges; low clear freestone water can still be too warm for trout |
| Trend | Flows are lower than yesterday morning, and temperature remains the controlling safety issue |
| Best Window | Not recommended for trout today |
| Best Method | Skip freestone trout fishing; use cold tailwater alternatives or warmwater species instead |
| Wadeability | Physical wading may be possible in places, but trout stress makes fishing these freestones the wrong call |
Weather
For Roscoe and Livingston Manor, the National Weather Service forecast calls for a high near 85 F, northwest wind around 3 to 7 mph, partly sunny conditions early, and showers and thunderstorms likely from early afternoon into the evening. Rain may help later, but it does not make the morning trout-temperature readings safe. Lightning and quick local runoff are additional reasons not to force a freestone trout plan today.
River Notes
The Cooks Falls temperature decides the Beaverkill report before tactics or hatch timing matter. A 75.9 F morning reading is too warm for responsible catch-and-release trout fishing. The Willowemoc is cooler, but 27.2 cfs is thin water and a 67.8 F morning reading leaves almost no margin. Do not rely on a brief cloud period, drizzle, or visible bugs to justify fishing stressed trout. Move to cold release water if trout are the goal, or make the holiday plan about bass, panfish, reservoirs, or another non-trout option.
Hatch Activity
Current Catskills source context still points to summer sulphurs, Blue Winged Olives, Isonychias, Light Cahills, caddis, and terrestrial patterns. On the Beaverkill and Willowemoc today, those hatches should be treated as regional information only. Save the trout flies for water that is cold enough to fish responsibly.
| Hatch | Size | Notes |
|---|---|---|
| Sulphur | 16-20 | Regionally active; fish it only on cold water that stays safely below the trout-stress line |
| Blue Winged Olive | 18-24 | Clouds and drizzle can help activity, but temperature still controls the trout decision |
| Isonychia | 10-12 | Useful on colder riffle water, not on the warm Beaverkill today |
| Light Cahill | 14-16 | Evening possibility on alternate cold water |
| Tan Caddis | 16-20 | Pupa and soft hackles remain good searching choices only where temperatures are safe |
| Ants and Beetles | 14-18 | Warm-season shaded-bank option for safe cold water or non-trout fishing |
| Rusty Spinner | 14-20 | Last-light option only after a thermometer confirms safe trout water elsewhere |
Recommended Flies
| Category | Fly | Size | Notes |
|---|---|---|---|
| Dry | Sulphur Comparadun or Sparkle Dun | 16-20 | Carry for cold tailwater water, not for the warm Beaverkill today |
| Dry | BWO Comparadun or CDC Dun | 18-24 | Small low-light option where temperatures stay safe |
| Dry | Light Cahill or White Wulff | 14-16 | Visible evening fly for alternate cold water |
| Dry | Rusty Spinner | 14-20 | Use only after a fresh temperature check on colder water |
| Dry | Ant or Beetle | 14-18 | Good shaded-bank option on safe cold water or for warmwater species |
| Nymph | Isonychia Nymph | 10-12 | Good summer nymph in cold riffles away from stressed freestone trout |
| Nymph | Pheasant Tail or Frenchie | 14-18 | Mayfly nymph for tailwater seams and pocket water that remains cold |
| Nymph | Caddis Pupa | 16-18 | Work riffles and pocket water on safer alternatives |
| Other | Stream Thermometer | Not reported | Required in this heat; stop targeting trout whenever water approaches 68 F |
Tactics
Do not fish the Beaverkill for trout today, and do not treat the Willowemoc as a safe backup just because it is cooler than the Beaverkill. If you are already in Roscoe, redirect to the cold West Branch, another tailwater, reservoir edges, or warmwater species. If you check any trout water yourself, take the temperature before fishing and keep checking as the day warms. Stop before 68 F, land fish quickly where water is safe, and avoid adding pressure to trout that are riding out another July temperature squeeze.
Gauge Links
| Gauge | Flow | Temp | Link |
|---|---|---|---|
| BEAVER KILL AT COOKS FALLS NY | 109 cfs | 75.9 F | USGS 01420500 |
| WILLOWEMOC CREEK NR LIVINGSTON MANOR NY | 27.2 cfs | 67.8 F | USGS 01419500 |
Sources
Official sources checked: USGS stations 01420500 and 01419500, plus the National Weather Service forecast for the Livingston Manor and 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, method, and trout-temperature safety context.