Delaware River Report: August 31, 2026

The release from Cannonsville is 500 cfs. Today looks like a good day to be on the water with light wind, clouds, and around .35″ of rain. It looks like an olive day. The last of the sulphurs in Deposit have been sporadic and unpredictable but some people have been finding a few fish on them. There are a few Isonychias and Cahills in the evening along with some hebes. The ants have been around – not in big numbers but they’re here. 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 70 degrees with clouds and periods of light rain. Wind will be light and variable.



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, NY507cfs49°
West Branch at Hale Eddy, NY581 cfs50°
East Branch at Harvard, NY175 cfs54°
East Branch at Fishs Eddy, NYN/A N/A
East Branch at Hancock, NY562 cfs65°
Mainstem at Lordville, NY1,300 cfs63°
Beaverkill at Cooks Falls, NY263 cfs62°
West Branch at 191 Bridge57°
West Branch at Walton (Cannonsville inflow)130 cfs65°
Cannonsville Reservoir Release500 cfs
Cannonsville Reservoir Capacity77.4%
Pepacton Reservoir Capacity88.3%

Close