Delaware River Report: July 16, 2025

We should have decent cloud cover today. The best daytime hatching is still going to in the coldest water. We may see some bugs on the lower West if we get a nice steady rain shower. Sulphurs, Isonychias, and Cahills are making up most of the hatch. There are some tan caddis around too. The West is at a good level for floating and wading and the Upper East is at a good wade level. Keep an eye on the radar. We shouldn’t see much rain but there is a possibility of some afternoon thunderstorms.

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

Today will be 88 degrees with clouds in the morning and some showers and thunderstorms in the afternoon. Wind will be 5 – 10 mph from the South.

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, NY497 cfs45°
West Branch at Hale Eddy, NY674 cfs49°
East Branch at Harvard, NY322 cfs60°
East Branch at Fishs Eddy, NY1,180 cfsN/A °
Mainstem at Lordville, NY2,970 cfs68°
Beaverkill at Cooks Falls, NY481 cfs66°
West Branch at 191 Bridge61°
West Branch at Walton (Cannonsville inflow)359 cfs70°
Cannonsville Reservoir Release549 cfs
Cannonsville Reservoir Capacity93.8%
Pepacton Reservoir Capacity95.3%
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