WhatsMyFly
WhatsMyFly › Housatonic River, CT

What Fly to Use on the Housatonic River

Freestone/Tailwater Southern New England CT

Large river with diverse habitat. The TMA section offers excellent dry fly fishing from spring through fall.

Current Conditions

Live USGS water data — updated every 30 minutes

Loading live conditions...
River conditions
Data: USGS Water Services

Today's Top Flies

Conditions-adjusted recommendations for right now

Matching the hatch...

Seasonal Hatch Chart

Complete hatch calendar with peak windows and matching fly patterns

JFMAMJJASOND
Blue Wing Olive Baetis spp.
Parachute BWO, BWO Emerger, Pheasant Tail Nymph
Hendrickson Ephemerella subvaria
Hendrickson Dry, Hendrickson Emerger, Hendrickson Nymph
March Brown Stenonema vicarium
March Brown Dry, March Brown Nymph
Caddis Brachycentrus spp.
Elk Hair Caddis, X-Caddis, Green Caddis Pupa
Sulfur Ephemerella dorothea
Sulfur Comparadun, Sulfur Spinner, Sulfur Nymph
Green Drake Ephemera guttulata
Green Drake Dry, Green Drake Emerger
Isonychia Isonychia bicolor
Isonychia Comparadun, Isonychia Nymph
Blue Wing Olive Baetis spp.
Parachute BWO, RS2 Emerger
Active season Peak activity

Complete Hatch Guide

8 documented hatches with peak timing and matching fly patterns

Insect Season Peak Time Patterns
Blue Wing Olive (Baetis) Mar 10 - May 25 Apr 1 - May 10 Afternoon dry Parachute BWO #18/20emerger BWO Emerger #18/20nymph Pheasant Tail Nymph #18/20
Hendrickson Apr 15 - May 15 Apr 22 - May 8 Afternoon, 2-5pm dry Hendrickson Dry #12/14emerger Hendrickson Emerger #14nymph Hendrickson Nymph #12/14
March Brown May 1 - Jun 10 May 10 - May 30 Afternoon to evening dry March Brown Dry #10/12nymph March Brown Nymph #10/12
Caddis (Mother's Day) Apr 20 - Jun 10 May 5 - May 25 Afternoon to evening dry Elk Hair Caddis #14/16emerger X-Caddis #14/16nymph Green Caddis Pupa #14/16
Sulfur May 20 - Jul 10 Jun 1 - Jun 20 Evening dry Sulfur Comparadun #16/18dry Sulfur Spinner #16/18nymph Sulfur Nymph #16/18
Green Drake May 25 - Jun 15 Jun 1 - Jun 10 Late afternoon to evening dry Green Drake Dry #8/10emerger Green Drake Emerger #10
Isonychia (Slate Drake) Jun 1 - Oct 15 Jun 15 - Jul 31 Evening dry Isonychia Comparadun #10/12nymph Isonychia Nymph #10/12
Blue Wing Olive (Fall) Sep 15 - Nov 30 Oct 1 - Nov 10 Afternoon dry Parachute BWO #18/20/22emerger RS2 Emerger #20/22
Get today's picks for Housatonic River →

More Rivers

Explore fly recommendations for other Northeast waters