Delaware River Report: August 23, 2026

The release from Cannonsville is 549 cfs. we’ve had a couple of rain showers move through this morning but so far nothing that will affect the flows. We may see a mix of everything with some rain showers, maybe a few thunderstorms, and some periods of sun peeking through. Yesterday was a decent olive day. Today should be too if we keep the clouds and some periods of light rain. Some people have had some success blind casting Isonychias and Cahills. The mid day sulphurs are getting a bit spotty as the hatch wanes but there still are some out there. 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 76 degrees with a few rain showers. Wind will be 5 – 10 mph from the South.


Adam with a nice rainbow yesterday. Tim Glynn photo
Igor with his first Delaware trout. Tim Glynn 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, NY560 cfs48°
West Branch at Hale Eddy, NY658 cfs51°
East Branch at Harvard, NY211 cfs56°
East Branch at Fishs Eddy, NYN/A N/A
East Branch at Hancock, NY578 cfs67°
Mainstem at Lordville, NY1,390 cfs64°
Beaverkill at Cooks Falls, NY292 cfs64°
West Branch at 191 Bridge58°
West Branch at Walton (Cannonsville inflow)159 cfs67°
Cannonsville Reservoir Release549 cfs
Cannonsville Reservoir Capacity79%
Pepacton Reservoir Capacity90.3%

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