Delaware River Report: July 31, 2026

The release from Cannonsville is 500 cfs. We had some isolated light rain showers yesterday afternoon but not enough to affect the flows. The West Branch is in great shape. The Beaverkill, Willowemoc, lower East Branch, and Mainstem are still all high and very off color. The fishing on the West Branch will be the same as it’s been for a few weeks. The daytime sulphurs are hatching in Deposit mixed with some olives and a few Isonychias. Smaller seems to be better. Stick to the lower West if you want to nymph. The algae has been bad up top making it a dry fly only game.

Today will be 83 degrees and partly cloudy. Wind will be 5 – 10 from the North.


Nick with a nice rainbow yesterday. Jared Makowski photo

What’s Hatching:
Dark Blue Wing Olive – #16 – 18 – Baetis vagans
Sulphur – 16 – 20 – Ephemerella dorothea
Tan Caddis – #16 – 20 – Hydrosyche sp
Light Cahill – #14 – Epeorus vitreus, Ephemerella invaria, Stenacron spp.
Slate Drake – #12-2xl – 12 – Isonychia bicolor


Click on the gauge links below for the latest flow information.

View the current local weather conditions.

Click on any gauge for the most recent data:
West Branch at Stilesville, NY516 cfs46°
West Branch at Hale Eddy, NY627 cfs49°
East Branch at Harvard, NY440 cfs59°
East Branch at Fishs Eddy, NYN/A N/A
East Branch at Hancock, NY3,090 cfs64°
Mainstem at Lordville, NY3,820 cfs64°
Beaverkill at Cooks Falls, NY1,840 cfs61°
West Branch at 191 Bridge58°
West Branch at Walton (Cannonsville inflow)1,470 cfs62°
Cannonsville Reservoir Release500 cfs
Cannonsville Reservoir Capacity75.2%
Pepacton Reservoir Capacity88.9%

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