Middlesex County · stream · order 3 river · ~5 cfs typical
Jar Brook
Jar Brook is a stream in Middlesex County, Massachusetts. FishableWaters aggregates every stocking record for this water from Massachusetts's fish & wildlife agency; 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
Fog
81°
61°
5 mph
20%
Sat
Overcast
85°
65°
8 mph
15%
Sun
Overcast
87°
65°
12 mph
10%
↗ pressure risingPost-front rising pressure can slow things down for a day.
Stocking ledger
No published stocking records yet. This water stays in our books — the ledger begins the hour its state agency publishes a record.
Angler reports
What's biting
No reports yet — be the first
Best bite times
No reports yet
Field notes
No notes yet
Nearby waters
- Winthrop Canal0.0 mi
- Factory Pond0.1 mi
- Linden Pond0.4 mi
- Houghton Pond0.4 mi
- Lake Winthrop1.5 mi
- Leland Millpond2.0 mi
- Ashland Reservoir3.0 mistocked May 27, 2026
- Cold Spring Pond (historical)3.5 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.
Jar Brook fishing — FAQ
Do I need a license to fish Jar Brook?+
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 Jar Brook?+
Jar Brook is a stream in Middlesex County, Massachusetts. Driving directions and an interactive topo map are on this page.