Delaware River Report: July 10, 2026

The release from Cannonsville is 500 cfs. Yesterday’s thunderstorms never materialized so we’re starting off today about the same as yesterday. Wunderground is calling for some clouds today but it’s pretty sunny this morning. The best daytime action will be closer to the dams in the coldest water. If you want to nymph or swing wets stay a little lower to avoid the algae in Deposit. Sulphurs, Cahills, Isonychias, olives, and some caddis are all out on the water. Blind casting Cahills and Isonychias can be effective when there isn’t a hatch.

Today will be 82 degrees and cloudy. There is a chance of a stray shower or thunderstorm. Wind will be 5 – 10 mph from the North.



What’s Hatching:
Dark Blue Wing Olive – #16 – 18 – Baetis vagans
Sulphur – 16 – 20 – Ephemerella dorothea
Tan Caddis – #16 – 20 – Hydrosyche sp
Light Cahill – #14 – Epeorus vitreus, Ephemerella invaria, Stenacron spp.
Slate Drake – #12-2xl – 12 – Isonychia bicolor


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, NY507 cfs45°
West Branch at Hale Eddy, NY557 cfs48°
East Branch at Harvard, NY238 cfs61°
East Branch at Fishs Eddy, NY505 cfsN/A
East Branch at Hancock, NY554 cfs75°
Mainstem at Lordville, NY1,300 cfs70°
Beaverkill at Cooks Falls, NY229 cfs70°
West Branch at 191 Bridge57°
West Branch at Walton (Cannonsville inflow)258 cfs71°
Cannonsville Reservoir Release500 cfs
Cannonsville Reservoir Capacity82.9%
Pepacton Reservoir Capacity89.4%

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