Delaware River Report: July 25, 2025

The release from Cannonsville has been dropped back to 549 cfs. Yesterday’s increase was just a pulse to cool the Mainstem at Lordville. We’re back to normal levels and in good shape for wading and floating. It’s going to be hot again today so look for spots with shade in the afternoon. The midday sulphurs and olives should come off in the coldest water. The lower West has been better for nymphing and blind casting with some sulphurs, olives, Cahills, and Isonychias coming off at dark or in the dark. We may see some thunderstorms today so keep an eye on the radar.

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 85 degrees and partly cloudy early. We may see some scattered thunderstorms with stronger winds in the afternoon. Total rainfall should be .15″. Wind will be 5 – 10 mph from the North.

Maya is having a great week. Jason Dubur photo
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, NY505 cfs46°
West Branch at Hale Eddy, NY607 cfs48°
East Branch at Harvard, NY185 cfs60°
East Branch at Fishs Eddy, NY432 cfsN/A °
Mainstem at Lordville, NY1,280 cfs68°
Beaverkill at Cooks Falls, NY164 cfs70°
West Branch at 191 Bridge60°
West Branch at Walton (Cannonsville inflow)120 cfs72°
Cannonsville Reservoir Release549 cfs
Cannonsville Reservoir Capacity91%
Pepacton Reservoir Capacity92.4%
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