Delaware River Report: July 2, 2025

The release from Cannonsville is 600 cfs and the spill has stopped. Yesterday’s rain bumped the flow at Hale Eddy about 100 cfs but it shouldn’t be noticeable and is already dropping. Most of the rain slid north of us. We’ll have a bit more sun today so blind casting Isonychas and Cahills in the riffles or nymphing and swinging wets would be a good start early. The Sulphurs, Cahills, and Isonychias should hatch later in the day in to the evening and dark. Look for banks that get shade earlier in the day.

The Beaverkill, Lower East Branch, and Mainstem water temps are all peaking in the high 60’s to low 70’s. It’s time to give these rivers a break until they cool back down.

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

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 – 18 – 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, NY535 cfs44°
West Branch at Hale Eddy, NY815 cfs49°
East Branch at Harvard, NY382 cfs54°
East Branch at Fishs Eddy, NY918 cfsN/A °
Mainstem at Lordville, NY2,210 cfs66°
Beaverkill at Cooks Falls, NY378 cfs67°
West Branch at 191 Bridge58°
West Branch at Walton (Cannonsville inflow)856 cfs67°
Cannonsville Reservoir Release600 cfs
Cannonsville Reservoir Capacity98.9%
Pepacton Reservoir Capacity98.6%
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