Stony Brook at RT 20 at Waltham, Massachusetts · River
The current water temperature at Stony Brook at RT 20 at Waltham is 24.8 °C (as of July 17, 2026, source: USGS).
Can you swim at Stony Brook at RT 20 at Waltham right now?
The current water temperature is 24.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Stony Brook at RT 20 at Waltham?
Currently 24.8 °C (updated continuously).
How warm is at Stony Brook at RT 20 at Waltham in July?
In July, the water temperature recently averaged 24.2 °C.