Delaware River Report: June 15, 2025

Both reservoirs are still spilling. The release from Cannonsville is 600 cfs. There is 330 cfs spilling. We woke up to some light rain that should amount to nothing. The cloud cover is good and the water temps are starting a couple of degrees lower than yesterday morning. Sulphurs, Cahills, and Isonychias are making up most of the mayflies. The hatches have been later with the warmer water temps. We’ve had sporadic caddis in the mornings offering some dry fly shots. Nymphs and streamers have been the best bets midday.

Today will be 66 degrees with rain showers early. Wind will be light and variable.

Matt with a nice one in the boat. Samantha Dennis photo
Joseph got one yesterday. Christian Bockelmann photo
Rick with a good one yesterday. Samantha Dennis photo

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 – 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, NY817 cfs56°
West Branch at Hale Eddy, NY1,080 cfs54°
East Branch at Harvard, NY622 cfs56°
East Branch at Fishs Eddy, NY1,150 cfsN/A °
Mainstem at Lordville, NY2,760 cfs61°
Beaverkill at Cooks Falls, NY410 cfs59°
West Branch at 191 Bridge56°
West Branch at Walton (Cannonsville inflow)907 cfs58°
Cannonsville Reservoir Release 600 cfs
Cannonsville Reservoir Capacity101.6%
Pepacton Reservoir Capacity100.2%
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