August 27, 2025

Delaware River Report: August 27, 2025

The release from Cannonsville is 797 cfs. It looks like the extra water is to keep the minimum flow at 1,750 cfs at Montague, NJ. The extra cold water release and the cool nights should help the water temps on the Upper Mainstem. We had a brief shower yesterday afternoon but not enough to bump the flows. Today looks like a good day to be on the water. It’s cool with decent cloud cover. Small olives, Cahills, and Isonychias are making up the bulk of the hatches. There are some Tricos and some river sections should see some white flies soon. We’re nymphing or swinging wet early and finding fish on top in the late afternoon / evening in to dark.

Today will be 68 degrees with considerable cloudiness. There is a slight chance of an afternoon shower. Winds 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 – 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.

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August 26, 2025

Delaware River Report: August 26, 2025

The release from Cannonsville is 687 cfs. Some of the runoff pushed through yesterday mid morning and the West Branch came up a bit with some color. That cleared up by late afternoon and we’re back to normal this morning. Olives, Isonychias, and Cahills are still making up the bulk of the bugs. There are some Tricos around too. Nymphing or swinging wets are the best bets when the sun is hitting the water but blind casting the riffles has also paid off. The cooler night time temps are beginning to help the other rivers but the lower East Branch and Beaverkill temps are still peaking over 70 degrees.

Today will be 70 degrees with sun and clouds mixed. There is a slight chance of an afternoon shower. Winds 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 – 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.

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August 25, 2025

Delaware River Report: August 25, 2025

The release from Cannonsville is 698 cfs. Last nights rain was negligible and the runoff will be noticeable on the river. The West Branch remains at a good level for wading and floating. Olives are still making up the bulk of the dry flies but Isonychias and Cahills are bringing a lot of fish to the net. Some of the fish eating olives will eat the bigger bugs but they’ve also worked well blindcasted in the riffles. Nymphing or swinging wets are good bets but stick to the mid to lower West Branch for that. The increased released probably broke the algae loose in Deposit and it’ll take a day to settle. If they leave or drop the release tonight or tomorrow.

Today will be 74 degrees with some light rain this morning giving way to periods of sun in the afternoon. Winds 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 – 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.

August 24, 2025

Delaware River Report: August 24, 2025

The release from Cannonsville is 593 cfs. Today looks like a great day to be on the water with cooler temps, less wind, and some light rain. That may push the little olives earlier offering some dry flyfishing. Isonychias and Cahills should also be out there sporadically. Blind casting bigger flies has still been a good bet when nothing is happening. Nymphing or swinging wets in the riffles has been good on some sections. Streamers have been better in low light conditions. We should see an additional .33″ of rain overnight but most of that should soak in to the ground.

Today will be 73 degrees and cloudy. We may some occasional rain showers totaling .02″ during the day. Winds 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.

August 23, 2025

Delaware River Report: August 23, 2025

The release from Cannonsville is 593 cfs. We’re in a stretch of warm, sunny weather for a few days. The midday hatching has been sporadic, with most of the action happening in the evening. Try blind casting Isos or Cahills in the riffles, and have your olives and spinners ready for the evening.

Today will be 82 degrees and sunny. Winds will be 10 – 15 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.

August 22, 2025

Delaware River Report: August 22, 2025

The release from Cannonsville is 676 cfs. Once this morning’s fog burns off it will be warm and sunny out there. The extra water from the release on the West Branch will help offset the warmer air temperatures but still look for those shaded spots during the day. Make sure to have your olives ready when the sun goes down.

Today will be 79 degrees and sunny. Winds 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 – 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.

August 21, 2025

Delaware River Report: August 21, 2025

The release from Cannonsville is 534 cfs. We had periods of much needed rain yesterday but the flows only bumped slightly and are in good shape today. The cooler temps have helped the fishing and we’ll have another nice day for fishing today. Have your olives with you in several patterns and try blind casting Isos in the riffles.

Today will be 74 degrees and cloudy. Winds will be 5 – 10 mph from the Northeast.

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.

August 20, 2025

Delaware River Report: August 20, 2025

The release from Cannonsville is 603 cfs. It’s much cooler today and we have almost an inch of rain in the forecast. The early rain is predicted to be heavy. We’ll post an update if it affects the river significantly. Look for olives hatching later in the day with the lighter rain.

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 61 degrees and rainy. Wind will be 5 – 10 mph from the Southeast.

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.

August 19, 2025

Delaware River Report: August 19, 2025

The release from Cannonsville is 659 cfs. We have a few days of cooler weather ahead of us which is a welcome relief. The hatches have still been mostly olives with some lingering Sulphurs. We’ve been catching fish on nymphs during the day and looking for risers as the sun drops.

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 75 degrees and cloudy. 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.

August 18, 2025

Delaware River Report: August 18, 2025

The release from Cannonsville is 631 cfs. We have a few days of cooler weather ahead of us which is a welcome relief. The hatches have still been mostly olives with some lingering Sulphurs. We’ve been catching a lot of fish blind casting Isonychias and Cahills in the riffles. We’ll still have sun most days so nymphing or swinging wets would be the best bets midday. Streamers have been good in low light either early in the morning or after the sun drops.

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 77 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 – 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.

August 17, 2025

Delaware River Report: August 17, 2025

The release from Cannonsville is 699 cfs. Get Trashed in the Catskills was a huge success. The volunteers are awesome and we think we set a new tire record. Today we’re cleaning up after the cleanup so we’ll resume our regular reports tomorrow.

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 86 degrees with a mix of clouds and sun. There is a chance of rain showers in the afternoon. Total rainfall should be .04″. Wind will be 5 – 10 mph from the West.

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.

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August 16, 2025

Delaware River Report: August 16, 2025

The release from Cannonsville is 631 cfs. It looks like we’re dealing with sun again. There have been some small olives in the afternoon but the best dry fly fishing has been in the evening with olives, cahills, and Isonychias. Blind casting the riffles could put some fish in the net midday but nymphing or swinging wets would be better choices. Today is our ninth Get Trashed River Cleanup. If you’re in the area and want to help clean the river we’re meeting here at the fly shop at 10 am.

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 86 degrees with and partly cloudy. There is a slight chance of a stray shower 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.