In June, Boston typically sees daytime highs of 25.2°C and overnight lows around 13.0°C. Compared to the annual average high of 15.0°C, June runs +10.1°C.
June in Boston averages a daytime high of 25.2°C and an overnight low of 13.0°C.
June runs +10.1°C compared to Boston's annual average high of 15.0°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 25.2°C and cooler evenings around 13.0°C.