Connecticut River Flow Rates & Stream Gauge Data

Live USGS stream gauge data for Connecticut — current CFS flow rates, gauge heights, water temperatures, and wading conditions for Connecticut rivers and streams. Updated every 15 minutes. Know before you go.

Planning with Connecticut river conditions

Browse USGS monitoring stations across Connecticut rivers and streams. Each gauge page shows current readings plus 7, 14, and 30-day flow-rate charts with condition indicators. Compare the station name and location with your intended reach, then use the recent trend alongside the current reading. Rain, snowmelt, dams, tributaries, and the distance between stations can produce different conditions on the same river.

Plan seasonal fly selection with the Connecticut hatch chart.