It is expected that temperatures will “feel like” reaching 105 degrees Fahrenheit in Boston and throughout southern New England until Wednesday night. This is a deadly stretch of heat that will affect a large portion of Massachusetts. As the combination of high humidity and air temperatures creates conditions that are oppressive, residents and workers who are outside are strongly encouraged to take precautions.
The National Weather Service in Boston has reported that a Heat Advisory would continue to be in effect until at least Wednesday evening. On the other hand, the humidity will cause the heat index to rise into the range of 95-105 degrees Fahrenheit for places such as Worcester, Springfield, New Bedford, and Hyannis. High temperatures will climb into the upper 80s to the middle 90s.
It is anticipated that the excessive heat would put a strain on people who work outside, individuals who do not have access to air conditioning, and vulnerable populations. It is being strongly recommended by the authorities that everyone remain inside during the peak afternoon hours, consume an increased amount of water, and check on neighbors who may be in danger. The cooling centers in Boston and Worcester are currently operational. The Massachusetts Bay Transportation Authority is keeping an eye on train operations to identify any problems that may arise as a result of hot vehicles.
The heat indexes that were recorded during this event have not seen since the summer of 2025, making it one of the hottest stretches of the year thus far. Those who are planning activities to be done outside should arrange them early or late and pause between activities frequently.
It is anticipated that the Heat Advisory will stay in effect until Wednesday; however, additional updates may be issued if the temperatures or humidity continue to be high.
