Delaware River Report: August 2, 2025

The release from Cannonsville is 500 cfs. The rain mostly slid around us and the West Branch is in great shape this morning. The cooler air temps have dropped the water temps a few degrees too. The best midday dry fly fishing is still in the coldest water on the Upper West and Upper East. Sulphurs and olives are making up the majority of the bugs. The lower West is fishing with Isonychias and Cahills. Blind casting has worked well when there are no bugs on the water. We’ll have more sunshine today so work the riffles or nymph on the lower river.

The Beaverkill, Lower East Branch, and Mainstem water temps are still peaking in the mid to high 70’s. It’s time to give these rivers a break until they cool back down.

Today will be 76 degrees with lots of sunshine. Wind will be 5 – 10 mph from the North.

It’s that time of year. August 15 – 16. Let’s clean up the river!

What’s Hatching:
Slate Drake – #12-2xl – 12 – Isonychia bicolor
Light Cahill – #14 – Epeorus vitreus (male), Ephemeralla rotunda, Ephemerella invaria
Pale Evening Dun – #14 – Epeorus vitreus (female)
Sulphur – #16 – 20 – Ephemerella dorothea
Dark Blue Wing Olive – #16 – 18 – Baetis spp.
Tan Caddis – #16 – 18 – Hydropsyche spp.
Tiny Blue Wing Olive – #22 – 26 – Pseudocloeon sp.


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, NY462 cfs46°
West Branch at Hale Eddy, NY576 cfs49°
East Branch at Harvard, NY167 cfs56°
East Branch at Fishs Eddy, NY500 cfsN/A °
Mainstem at Lordville, NY1,410 cfs64°
Beaverkill at Cooks Falls, NY226 cfs64°
West Branch at 191 Bridge56°
West Branch at Walton (Cannonsville inflow)166 cfs65°
Cannonsville Reservoir Release500 cfs
Cannonsville Reservoir Capacity86.4%
Pepacton Reservoir Capacity90.6%
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