Connecticut River Flow Today
As of October 22, 2026 at 3:45 AM, the Connecticut River is flowing at 20,700 cfs at Middle Haddam, CT — 136% of normal for the date and up 30% in 24 hours. 10 of 10 USGS gauges reported in the last 3 days; flows range from 319 to 20,700 cfs. ❤ Favorite
Connecticut River map
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Connecticut River conditions today
Where the river is running versus normal, what’s rising or dropping, and what it means for a trip — built from the live USGS readings below.
At Middle Haddam, the Connecticut River is running 20,700 cfs — 136% of normal, up 30% since yesterday. Along the river, 8 of 10 reporting gauges are below normal (the typical gauge is at 70% of normal).
In the last 24 hours the river is rising at Middle Haddam (+30%); dropping at Holyoke (-39%) and Thompsonville (-37%).
Highest against normal: Middle Haddam at 136%. Lowest: Montague City at 39%.
How the Connecticut River compares to normal
Every reporting gauge from the top of the river to the bottom: bar length is today’s flow, colour is percent of normal for the date.
Flow along the river, upstream to downstream
- Pittsburg1,211 ft 319 cfs76%
- North Stratford885 ft 647 cfs63%
- Dalton813 ft 1,290 cfs78%
- Wells River403 ft 1,160 cfs50%
- West Lebanon322 ft 1,800 cfs93%
- North Walpole223 ft 2,450 cfs78%
- Montague City111 ft 2,780 cfs39%
- Holyoke43 ft 4,700 cfs46%
- Thompsonville36 ft 4,850 cfs50%
- Middle Haddam3 ft 20,700 cfs136%
Bar length uses a square-root scale so small headwater flows stay visible next to big downstream ones. Colour: <50% 50–90 90–110 110–150 150%+ of normal.
Where every gauge sits
One dot per Connecticut River streamgauge, placed by its own percent of normal. The line is the typical gauge (70%).
Connecticut River flow report
| Streamgage | Streamflow | % of normal | 24h | Gage height | To flood stage | Elevation |
|---|---|---|---|---|---|---|
|
Connecticut River Below Indian Stream Near Pittsburg NH
Oct 22, 3:15 AM · USGS 01129200 |
319 cfs | 76% | -8% | 2.73 ft | · | 1,211 ft |
|
Connecticut River At North Stratford NH
Oct 22, 3:15 AM · USGS 01129500 |
647 cfs | 63% | -14% | 3.48 ft | 9.5 ft below | 885 ft |
|
Connecticut River Near Dalton NH
Oct 22, 3:15 AM · USGS 01131500 |
1,290 cfs | 78% | -12% | 8.18 ft | 8.8 ft below | 813 ft |
|
Connecticut River At Wells River VT
Oct 22, 3:30 AM · USGS 01138500 |
1,160 cfs | 50% | -7% | 2.19 ft | 8.8 ft below | 403 ft |
|
Connecticut River At West Lebanon NH
Oct 22, 3:30 AM · USGS 01144500 |
1,800 cfs | 93% | -23% | 4.64 ft | 17.4 ft below | 322 ft |
|
Connecticut River At North Walpole NH
Oct 22, 3:30 AM · USGS 01154500 |
2,450 cfs | 78% | -7% | 6.59 ft | 21.4 ft below | 223 ft |
|
Connecticut River At Montague City MA
Oct 22, 3:15 AM · USGS 01170500 |
2,780 cfs | 39% | -8% | 6.79 ft | 21.2 ft below | 111 ft |
|
Connecticut River At Interstate 391 Bridge At Holyoke MA
Oct 22, 3:30 AM · USGS 01172010 |
4,700 cfs | 46% | -39% | 5.16 ft | 21.3 ft below | 43 ft |
|
Connecticut River At Thompsonville CT
Oct 22, 3:30 AM · USGS 01184000 |
4,850 cfs | 50% | -37% | 7.93 ft | 7.1 ft below | 36 ft |
|
Connecticut River At Middle Haddam CT
Oct 22, 3:45 AM · USGS 01193050 |
20,700 cfs | 136% | +30% | 1.91 ft | 5.1 ft below | 3 ft |
USGS provisional data. Readings are in each gauge’s local time; gauges silent for more than 3 days are marked “Last reported”. Tap any gauge for its hydrograph, forecast and history.
Dams & reservoirs on the Connecticut River
Releases from these dams shape the flow downstream. Tap one for its daily level and history.
Connecticut River streamflow over time
Daily total flow across every monitored gauge on the river.
Maximum streamflow by year
Connecticut River
The Connecticut River is the longest river in New England, stretching for 410 miles from its source in New Hampshire to its mouth at Long Island Sound. The river played a significant role in the industrial development of the region, serving as a major transportation route for goods and people. Today, the river is an important source of hydroelectric power, with several large dams and reservoirs along its length, including the Moore, Wilder, and Vernon dams. The river also supports a range of recreational activities, such as fishing, boating, and hiking, and provides water for agriculture in the Connecticut River Valley. Despite decades of pollution, the river has seen significant improvements in water quality and biodiversity in recent years due to restoration efforts.
About the Connecticut River
How is the Connecticut River flowing right now?
As of October 22, 2026, the Connecticut River is flowing at 20,700 cfs at Middle Haddam, CT, about 136% of normal for the date. Across its 10 USGS gauges, current flows range from 319 to 20,700 cfs. Every gauge’s live reading is in the table above.
Is the Connecticut River running high or low?
The typical gauge on the Connecticut River is at 70% of normal for the date. Above 100% means higher than the historical average for this calendar day; below 100% means lower. The profile above shows which reaches are high or low.
What is flood stage on the Connecticut River?
The National Weather Service sets flood stages for North Stratford (13.0 ft), Dalton (17.0 ft), Wells River (11.0 ft), West Lebanon (22.0 ft), North Walpole (28.0 ft), Montague City (28.0 ft), Holyoke (26.5 ft), Thompsonville (15.0 ft), Middle Haddam (7.0 ft). The table shows how far each gauge is below its flood stage right now.
Where does the data come from?
Discharge and gage height are from the USGS National Water Information System; flood stages from the National Weather Service. The history chart sums every monitored gauge on the river.
Can I get alerts for a gauge?
Yes — open any gauge from the table, favorite it in the Snoflo app and set a flow threshold.