Connecticut River water temperature
Connecticut River, Indian Stream near Pittsburg, New Hampshire · River
The current water temperature at Connecticut River is 16.9 °C (as of September 21, 2026, source: USGS).
A river can change temperature within hours — snowmelt, rain or power-plant operations show up immediately. That is why the measured value counts here, not an estimate.
Measurement series & statistics
This measurement series includes 104 data points since August 26, 2026.
Lowest recorded value: 14.7 °C on August 30, 2026 · highest value: 19.5 °C on August 31, 2026.
In September, temperatures have ranged between 15.2 °C and 19.4 °C.
Nearby waters
More measuring points: Connecticut River
Frequently asked questions
Can you swim at Connecticut River right now?
The current water temperature is 16.9 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Connecticut River?
Currently 16.9 °C (updated continuously).
How warm is at Connecticut River in September?
In September, the water temperature recently averaged 16.9 °C.
