Connecticut River water temperature
Connecticut River, Northfield, Massachusetts · River
The current water temperature at Connecticut River is 19.9 °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 389 data points since July 23, 2026.
Lowest recorded value: 19.9 °C on September 21, 2026 · highest value: 27.3 °C on August 11, 2026.
In September, temperatures have ranged between 19.9 °C and 24.4 °C.
The current value is 3.4 °C below the September average of this series.
Nearby waters
More measuring points: Connecticut River
Frequently asked questions
Can you swim at Connecticut River right now?
The current water temperature is 19.9 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Connecticut River?
Currently 19.9 °C (updated continuously).
How warm is at Connecticut River in September?
In September, the water temperature recently averaged 23.3 °C.
When is the water warmest at Connecticut River?
Across the measurement record, August is on average the warmest month (25.1 °C).
