Middlesex County · stream · order 6 river · ~463 cfs typical
Sudbury River
Stocked 4× on record · MassWildlife
Sudbury River is a stream in Middlesex County, Massachusetts, stocked with Brown Trout and Rainbow Trout — most recently on May 14, 2026. FishableWaters aggregates every stocking record for this water from MassWildlife; the latest schedule and today's bite windows are above.
Best days this week
Days near a new or full moon tend to fish best.
Today's bite windows
Conditions, next 3 days
Today
Rain
75°
63°
9 mph
38%
Fri
Overcast
80°
59°
9 mph
17%
Sat
Overcast
86°
64°
8 mph
2%
↗ pressure risingPost-front rising pressure can slow things down for a day.
Stocking ledger
| — 2026 — | ||||
| May 14 | Brown Trout | — | ||
| May 14 | Brown Trout | — | ||
| Apr 6 | Rainbow Trout | — | ||
| Apr 6 | Rainbow Trout | — | ||
Angler reports
What's biting
No reports yet — be the first
Best bite times
No reports yet
Field notes
No notes yet
All Massachusetts waters with brown trout → · All Massachusetts waters with rainbow trout →
Nearby waters
- Assabet River0.0 mistocked May 8, 2026
- Mill Brook0.4 mi
- Concord Reservoir0.4 mi
- Spencer Brook0.9 mi
- Angiers Pond1.3 mi
- Fairyland Pond1.4 mi
- Hutchins Pond1.6 mi
- Batemans Pond2.0 mi
Seasons, limits, and rules are the state's call — check the official MA regulations and buy your license before you go. We link the source; we never restate the rules.
Sudbury River fishing — FAQ
What fish are stocked in Sudbury River?+
Sudbury River is stocked with Brown Trout and Rainbow Trout in Middlesex County, Massachusetts, most recently on May 14, 2026 by MassWildlife. The full stocking ledger is on this page.
When does Sudbury River get stocked?+
Going by 4 records since 2026, stocking at Sudbury River peaks in April and May. Check this page for the season's scheduled and most recent stockings.
Do I need a license to fish Sudbury River?+
Yes — Massachusetts requires a fishing license. Buy one from the state and check current seasons and limits before you go; both are linked on this page.
Where is Sudbury River?+
Sudbury River is a stream in Middlesex County, Massachusetts. Driving directions and an interactive topo map are on this page.
Data: MassWildlife · updated May 14, 2026 · checked daily · we publish what agencies publish, nothing else.