Delaware River Report: August 15, 2026

The release from Cannonsville is 500 cfs. The flows have dropped back a bit more and today looks like a beautiful day to be on the water. Yesterday was an odd mix of dry fly fish and nymphing in the sunshine so be ready for just about anything. The mid day sulphurs are getting a bit spotty as the hatch wanes but there still are some out there. It’s also still the best shot at daytime dry fly action – especially on these sunny days. There are some olives mixed in plus a few Isonychias and Cahills. 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 79 degrees with sunshine and clouds mixed. Wind will be 5 – 10 mph from the NW.


Peyton in the sunshine. Austin Van der Linden photo
We’re meeting today in the fly shop at 10 am. Come help clean up the river!

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, NY560 cfs48°
West Branch at Hale Eddy, NY705 cfs50°
East Branch at Harvard, NY240 cfs57°
East Branch at Fishs Eddy, NYN/A N/A
East Branch at Hancock, NY844 cfs68°
Mainstem at Lordville, NY1,730 cfs67°
Beaverkill at Cooks Falls, NY441 cfs64°
West Branch at 191 Bridge58°
West Branch at Walton (Cannonsville inflow)276 cfs67°
Cannonsville Reservoir Release500 cfs
Cannonsville Reservoir Capacity80.1%
Pepacton Reservoir Capacity92.1%

Close