Boston recorded its first official heat wave of 2025 and hit 102 degrees Tuesday, as extreme weather set new temperature records in the city. It wasn't just a record-setting day, it was a record ...

Boston Mayor Michelle Wu declared a heat emergency Sunday through Tuesday, with temperatures forecast to reach 95 degrees and hotter during the summer’s first heat wave, the city announced.

The Boston Athletic Association announced Monday that registration for the 2026 Boston Marathon will open this fall from Sept. 8-12, with the qualifying window for the 2027 race beginning on Sept. 13.

Boston is likely to break the previous heat record for June 24 set at 95 degrees in 2013, Cadima said. The record high for June in Boston is 100 degrees, set three times in 1925, 1952 and 2021.