Housatonic River
Cornwall Bridge · TMA
NW Connecticut, USA
Open live forecast →Target species: Brown and Rainbow.
Stream gauge: 01199000. Flow and water temperature update on every refresh.
Weekly AI Outlook as of 06/05/26
The Housy is running at a perfect 360 cfs — ideal early summer level for wade fishing the Cornwall TMA. Sulphurs are hitting peak emergence this week with consistent evening spinner falls, while Green Drakes are just starting to show in the deeper pools. Friday's 1.5+ inches of rain will bump flows temporarily, but Saturday and Sunday look prime for dry fly fishing as levels settle back down.
- Flow: 360 cfs — perfect wading conditions in the TMA. Friday's rain will spike flows briefly, but expect quick recovery by weekend.
- Hatches: Peak Sulphur emergence #16-18 in evenings. First Green Drakes showing in deeper pools — watch for #8-10 patterns to become key.
- Water Temp: Mid-50s range supporting consistent mayfly activity. Cool enough to keep trout active through midday periods.
- Best Window: Evening Sulphur emergences 6-8pm. Post-rain Saturday afternoon through Sunday morning for settled water and hungry fish.
Generated weekly from live USGS gauge readings, weather forecasts, and recent fly shop reports. Updates Friday mornings.
About this Water
- Freestone
- Best months: Apr–Oct, peak May–June
The Housatonic River through northwestern Connecticut is a broad freestone river running through the Litchfield Hills — classic Eastern brown trout water with a solid population of holdover and wild fish. The Trout Management Area (TMA) from Falls Village through Cornwall offers the highest-quality water. Smallmouth bass dominate the lower river through the warmer summer months. Hatch sequences are reliable: Hendrickson in May, Sulphur and March Brown through June, and the famous Hous Iso (Isonychia) hatch through summer.
The Housatonic Iso hatch — large dark mayflies emerging in July through September evenings — produces some of the most reliable summer dry-fly fishing in southern New England.
January Outlook
January on the Housatonic River in Connecticut — the river can stay partially open in the main channel through winter. The larger freestone river character makes it less consistent than the Farmington tailwater, but midge fishing is possible in open sections.
Productive Patterns
- Zebra Midge
- Soft Hackle
- RS2
Tips
January on the Housatonic is marginal — the river can freeze in cold winters. The main channel near Falls Village and the C&R section near Cornwall may have open water. Midge nymphing in the deeper pools is the winter option. Check conditions before making the drive.
Water Notes
300–800 cfs. Water 36–44°F. Possible partial freeze. Check conditions. Marginal winter fishing.
February Outlook
February on the Housatonic — winter conditions. The river is mostly frozen or very cold. The Cornwall C&R section may have pockets of open water above springs. Not a prime month.
Productive Patterns
- Midge Nymph
- RS2
- Soft Hackle
Tips
February fishing on the Housatonic is limited — the river is large and freestone, subject to freezing. The spring-influenced sections near Cornwall stay slightly warmer. Focus on planning the April Hendrickson trip.
Water Notes
300–600 cfs. Water 36–44°F. Cold winter conditions. Check for ice.
March Outlook
March on the Housatonic sees ice-out beginning. Spring runoff builds flows and the first Baetis activity begins by late March. Connecticut spring is approaching.
Productive Patterns
- Blue Winged Olive
- Baetis Nymph
- Midge Dry
- Soft Hackle Emerger
Tips
Late March can produce the Housatonic's first dry fly fishing of the year. Baetis hatches begin on warm afternoons. The C&R section near Cornwall is the most reliable early-season stretch. Flows can be high from snowmelt.
Water Notes
600–1,500 cfs. Water 42–50°F. Ice-out conditions. First Baetis activity possible.
April Outlook
April on the Housatonic — Quill Gordon and early Hendrickson hatches begin. The large river comes to life after winter. The Cornwall C&R section is the main destination.
Productive Patterns
- Quill Gordon
- Hendrickson
- Blue Winged Olive
- Soft Hackle
Tips
April is the Housatonic's opening month. The Hendrickson hatch begins in mid-April and the dry fly season is underway. The C&R section near Cornwall is the primary destination. Wading requires care — the river is large and can run fast in spring.
Water Notes
600–1,500 cfs. Water 44–52°F. Spring conditions. Hendrickson hatch beginning.
May Outlook
The Housatonic in Connecticut offers excellent spring fishing with Hendrickson and Sulphur hatches. The catch-and-release section near Cornwall is the finest stretch.
Productive Patterns
- Hendrickson
- Sulphur
- Blue Winged Olive
- Elk Hair Caddis
Tips
The Housatonic's C&R section produces large brown trout. Evening hatches from 6–9pm are the highlight. The river is larger than the Farmington — wading requires care.
Water Notes
600–1,500 cfs. Water 48–56°F. Larger river with excellent habitat.
June Outlook
Excellent early summer fishing on the Housatonic. Sulphur and Caddis hatches are consistent.
Productive Patterns
- Sulphur Dry
- Elk Hair Caddis
- Green Drake
- PMD
Tips
The Housatonic Green Drake hatch in June can be spectacular — large brown trout rise freely to this big mayfly. The C&R section near Cornwall produces the most consistent action.
Water Notes
500–1,200 cfs. Water 52–60°F. Good early summer conditions.
July Outlook
July summer fishing on the Housatonic. The river can warm significantly in summer but the larger flows provide some temperature stability. Caddis evenings and morning terrestrials.
Productive Patterns
- Elk Hair Caddis
- Hopper
- Beetle
- PMD Cripple
Tips
July fishing on the Housatonic is best in the early morning and evening. The C&R section near Cornwall fishes best with light summer pressure. Check water temperatures in hot years — the Housatonic can stress trout in extreme heat.
Water Notes
300–800 cfs. Water 60–70°F. Summer warmth. Fish mornings and evenings. Check temps in heat waves.
August Outlook
August on the Housatonic — monitor water temperatures carefully. The river's brown trout can experience heat stress in extreme summers. Dawn fishing for the most comfortable fish.
Productive Patterns
- Hopper
- Beetle
- Ant
- Elk Hair Caddis (early morning)
Tips
August fishing on the Housatonic requires checking temperatures. In years with moderate temperatures, morning fishing is excellent. In extreme heat years, rest the river during the hottest weeks. The C&R section designation is important — handle fish carefully.
Water Notes
200–600 cfs. Water 62–72°F. Monitor temperatures. Dawn fishing recommended.
September Outlook
Fall BWO fishing and streamer season on the Housatonic.
Productive Patterns
- Blue Winged Olive
- Elk Hair Caddis
- Streamer
- Mahogany Dun
Tips
September on the Housatonic is excellent with BWO hatches and pre-spawn brown trout becoming aggressive. The C&R section is the most productive.
Water Notes
400–900 cfs. Water 52–60°F. Good fall conditions.
October Outlook
October is the Housatonic's best fall month. Brown trout spawning activity produces aggressive fish and the BWO hatches are reliable. Connecticut fall foliage in the Berkshire hills is spectacular.
Productive Patterns
- Blue Winged Olive
- Streamer
- Egg Pattern
- Mahogany Dun
Tips
October on the Housatonic combines excellent brown trout fishing and spectacular Connecticut fall foliage. The C&R section near Falls Village and Cornwall is the finest stretch. Morning streamers and afternoon BWO dries is the October formula.
Water Notes
400–900 cfs. Water 48–56°F. Peak fall conditions. Brown trout spawning season.
November Outlook
November on the Housatonic — late fall season with brown trout spawning and the last consistent dry fly action of the year. BWO hatches on mild afternoons.
Productive Patterns
- Streamer
- Egg Pattern
- Blue Winged Olive
- Soft Hackle
Tips
November on the Housatonic is productive through mid-month. Brown trout spawning in the C&R section gravel runs. Streamer fishing is excellent for large pre-winter fish. Late BWO activity on mild afternoons into November.
Water Notes
400–900 cfs. Water 44–52°F. Late season. Brown trout spawning. Streamer fishing excellent.
December Outlook
December closes the Housatonic season as Connecticut winter arrives. The river can freeze in the upper sections. The final month of the year — plan the April Hendrickson trip.
Productive Patterns
- Midge Nymph
- Soft Hackle (early month)
Tips
December fishing on the Housatonic is limited. The river can freeze in severe winters. The main channel sections near Falls Village may stay open in mild winters. Focus on planning the next season's trips.
Water Notes
300–700 cfs. Water 38–46°F. Late season freeze-up approaching. Check conditions before visiting.
Hatch Calendar
| Insect | Peak | Active | Size | Productive Patterns |
|---|---|---|---|---|
| Hendrickson Ephemerella subvaria |
Apr, May | Apr, May | #12–14 |
|
| Green Drake Ephemera guttulata |
May | May, Jun | #6–10 |
|
| Sulphur Ephemerella dorothea |
Jun | May, Jun, Jul | #16–18 |
|
Access & Approach
Cornwall, CT and Falls Village, CT are the main bases. Public fishing access at multiple state-managed sites. Connecticut fishing license required. TMA regulations apply on designated water — single barbless hooks, catch-and-release.
Nearby Fly Shops
- Housatonic River Outfitters
- Farmington River Report
Regulations & License
Fishing in Connecticut requires a current license. Always verify season dates, bag limits, and any special-regulation waters before you fish.
Connecticut fishing regulations & license →
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About Current
Housatonic River conditions on Current combine real-time flow data (USGS, WSC, CDEC, CEHQ), weather, tide predictions, hatch probabilities calibrated to this specific water, and recent fly shop reports from the area.
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