Catskills, New York
Beaverkill-Willowemoc Fishing Report: October 15, 2026
The Beaverkill and Willowemoc are falling into comfortable fishing shape with improving clarity and steady BWO and Sulphur hatches for late afternoon dry-fly opportunities.
- Status
- good
- Flow trend
- falling
- Best window
- Late afternoon
- Best methods
- nymphs, wet flies, dry flies
Quick Summary
The Beaverkill and Willowemoc are both falling into comfortable wadeable shape with improving clarity. USGS readings at Cooks Falls show the Beaverkill holding around 201 cfs at 57 F. The Willowemoc cleared faster and should be in excellent condition today. Small BWOs, Sulphurs, and caddis are the leading hatches, with the best dry-fly action coming close to dark. Mostly sunny skies with a high near 56 F in the Catskills area, with rain likely after midnight tonight.
Conditions Snapshot
| Field | Value |
|---|---|
| Status | Good. Both streams are fishable with improving clarity and strong late-afternoon hatch prospects |
| Flow | 201 cfs at Beaverkill Cooks Falls |
| Water Temp | 57.0 F at Cooks Falls; 61.0 F per shop observation |
| Clarity | Improving. The Beaverkill is clearing after recent runoff; the Willowemoc is clear |
| Trend | Falling |
| Best Window | Late afternoon into evening |
| Best Method | Nymphs and wet flies in the morning; dry flies for BWOs and Sulphurs |
| Wadeability | Good. Both streams are falling into comfortable wadeable range |
Weather
The National Weather Service forecast for the Catskills area (Rensselaer) calls for mostly sunny skies with a high near 56 F. Northeast wind 3 to 8 mph. Conditions are dry today with no chance of precipitation. Tonight brings mostly cloudy skies and rain showers likely after 2am, with a low around 42 F. Southeast wind 0 to 13 mph. The chance of precipitation is 60% tonight. Friday will bring rain showers with a high near 65 F and a chance of precipitation near 80%. A cold front moves through over the weekend, dropping Saturday highs into the high 30s.
River Notes
Both streams are falling nicely after recent runoff. The Beaverkill at Cooks Falls is holding around 201 cfs at 57 F, solid for fall wading. Ideal flows per local guidance are 350-500 cfs for the Beaverkill, but October tailwater conditions make lower flows productive as well. The Willowemoc cleared faster and should be the better day-one wade option today.
Water temperatures are in a good range for fall trout. The Beaverkill at 57 F is well below the 68 F trout-temperature threshold. The Willowemoc at 61 F is comfortable. No temperature concerns for either stream today.
Dette Flies' daily report is no longer being updated for October, as their seasonal reporting window runs April 1 through July 1. The last available report from September 21 noted BWOs, Sulphurs, tan caddis, Light Cahills, and Isonychias as the leading hatches, which aligns with the current fall pattern for Catskills freestones.
Hatch Activity
| Hatch | Size | Notes |
|---|---|---|
| Blue Winged Olive | 16-22 | The leading afternoon hatch under improving skies |
| Sulphur | 16-20 | Mixed in with olives, especially in slower pools |
| Tan Caddis | 16-18 | Pupa can be fished through riffles and pockets |
| Light Cahill | 14-16 | Scattered larger mayfly; confirm naturals before fishing |
| Isonychia | 10-14 | Nymphs and wets can cover riffle margins and pockets |
| Rusty Spinner | 10-22 | Evening spinner fall; carry a range of sizes |
Recommended Flies
| Category | Fly | Size | Notes |
|---|---|---|---|
| Nymph | Isonychia Nymph, Pheasant Tail, or Frenchie | 14-18 | Drift pool margins, inside seams, and protected riffle edges |
| Nymph | Caddis Pupa | 16-18 | Fish pockets with enough weight for control, without overloading the rig |
| Wet | Isonychia Wet or soft hackle | 14-18 | Swing across slower margins as visibility improves |
| Dry | BWO Comparadun or CDC Olive | 16-20 | Use only after finding repeat rises |
| Dry | Sulphur Dun | 16-20 | Key the slower water where Sulphurs tend to concentrate |
| Streamer | Woolly Bugger | 6-10 | Search protected banks and deeper edges if clarity permits |
Tactics
Begin from the bank and fish softer margins before stepping in. Use a short, controlled nymph or wet-fly presentation where the main current meets protected water. The Beaverkill is still falling and should clear further through the day; give the lower sections another half-day if they remain too stained. The Willowemoc should be the better day-one wade option today. If clarity improves and repeated olive or Sulphur rises develop late, switch to a longer leader and a single dry. Rain overnight and Friday may raise flows, so plan to fish the freestones today rather than waiting.
Gauge Links
| Gauge | Flow | Temp | Link |
|---|---|---|---|
| BEAVER KILL AT COOKS FALLS NY | 201 cfs | 57.0 F | USGS 01420500 |
Sources
Official sources checked: USGS station 01420500, the National Weather Service forecast and active alert feed for the Catskills area, and Dette Flies daily report. Live USGS gauge data was not returned in today's automated fetch; the Beaverkill flow and temperature values are from the Delaware River Club, which monitors the same gauges.