Episode Details

Episode Overview

George Costa, manager at TCO Fly Shop in State College, Pennsylvania, joins host Marvin Cash on The Articulate Fly fly fishing podcast for the latest Central PA Fishing Report as early summer conditions take hold across the region's limestone streams. Recorded in late June with the calendar almost at July, this report catches Central PA at an important seasonal juncture: stream temperatures have been favorable in the low 60s following a recent shot of rain, but a warming trend is on the horizon that will require anglers to exercise real discipline about when — and whether — to fish.

Costa reports stream temps around 61°F and highlights the key 68°F threshold: when water temperatures climb above that mark, catch and release fishing becomes inadvisable because trout cannot be safely released. He encourages anglers to shift their day structure around this reality, targeting early mornings and late evenings while avoiding midday sessions as temperatures creep upward next week.

On the insect front, Cahills and Isonychia (Isos) are active, and terrestrials are working well — Greenie Weenies, ants and Chubby Chernobyls are getting fish to look up. Dry fly action is most consistent in the evenings, with early morning fishing also productive. Trico hatches are still two to three weeks out, expected to arrive in mid-July. Costa also previews upcoming TCO Fly Shop events, including a summer fly fishing festival in August at the Boiling Springs location and a topwater smallmouth bass class with local guide Caleb available this weekend in State College.

Key Takeaways

• How to use the 68°F stream temperature threshold to protect fish during early summer heat and plan your fishing day accordingly.
• Why early morning and late evening are the most productive windows for Central PA trout fishing as summer temperatures build.
• When to expect trico hatches on Central PA waters — mid-July is typical.
• How terrestrial patterns like Greenie Weenies, ants and Chubby Chernobyls can keep fish looking up when midday hatch activity slows.
• Why recent rain is good news for Central PA anglers and how to think about conditions in the days following precipitation.

Techniques & Gear Covered

The episode focuses on early summer dry fly and terrestrial fishing strategies for Central PA limestone streams. Costa discusses the concurrent Cahill and Iso hatches driving evening dry fly action, alongside the broadening terrestrial game that is now well underway — Greenie Weenies, ant patterns and Chubby Chernobyls are all drawing fish to the surface throughout the day. Timing discipline is the defining early summer tactic: fishing early and late while avoiding midday sessions as air and water temperatures climb. Stream temperature monitoring functions as the underlying framework for all of this, with Costa referencing the 68°F threshold as the practical guideline that should govern whether catch and release fishing is appropriate on a given afternoon. Looking ahead, trico hatches on Central PA waters typically arrive in mid-July, bringing a different presentation challenge that favors fine tippets and small dries in the morning hours.

Locations & Species

The episode covers Central Pennsylvania's limestone stream network centered around State College and the surrounding Centre County watershed. Wild trout are the primary target species throughout, with the Cahill, Iso and terrestrial hatch discussions pointing squarely to the regulated limestone streams the region is known for. Costa also references TCO's Boiling Springs location as the site of the upcoming summer festival, touching on the Yellow Breeches corridor in Cumberland County. Smallmouth bass get a secondary