Hottest and Coldest Temperatures Ever in Boston on September 26

On September 26th in Boston, the weather varies from the hottest recorded temperature of 93.0°F in 2007 to the coldest recorded temperature of 42.1°F in 1978. The average temperature for this date stands at 61.95°F, with an average high of 66.44°F and an average low of 57.46°F. In 1978, one interesting news item relates to the Boston Celtics winning the NBA Championship, beating the Seattle SuperSonics in a thrilling series, securing their 13th Championship title overall.