Stony Brook, Unnamed Tributary 1, near Waltham, Massachusetts · River
The current water temperature at Stony Brook is 14.0 °C (as of July 17, 2026, source: USGS).
Can you swim at Stony Brook right now?
The current water temperature is 14.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Stony Brook?
Currently 14.0 °C (updated continuously).
How warm is at Stony Brook in July?
In July, the water temperature recently averaged 15.1 °C.