What is the current flow on Stony Brook Reservoir?

Stony Brook Reservoir was running 0 cubic feet per second as of Aug 1, 2026, 5:40 PM UTC, measured at USGS gauge 01104475. This is a build-time snapshot rather than a live reading — check the USGS gauge directly before relying on it.

What is the water temperature on Stony Brook Reservoir?

65.3°F (18.5°C) as of Aug 1, 2026, 5:40 PM UTC, at USGS gauge 01104475. Stony Brook Reservoir carries no state trout classification, so the trout-stress thresholds do not apply to it — this is a water temperature measurement, not a fishery judgement.

Stony Brook Reservoir

Massachusetts. Streamflow and water-temperature readings from USGS gauges. Running 0 cfs as of Aug 1, 2026, 5:40 PM UTC.

Latest Reading

cubic feet / second

65.3°F

water temperature (18.5°C)

USGS gauges

Flow measured Aug 1, 2026, 5:40 PM UTC at gauge 01104475. Temperature measured Aug 1, 2026, 5:40 PM UTC at gauge 01104475. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on Stony Brook Reservoir

Gauge	Station	Water temp?
01104475	STONY BROOK RES., UNNAMED TRIB 1, NEAR WESTON, MA	Yes
01104480	STONY BROOK RESERVOIR AT DAM NEAR WALTHAM, MA	Yes

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Conditions: USGS NWIS (public domain).