Due to extreme heat today and tomorrow, the MBTA may need to operate trains at reduced speeds in some areas to ensure safety as we compensate for heat-related stress on the tracks, which could result in slightly longer travel times.   

The MBTA will also have crews stationed around the system to provide assistance. Riders are encouraged to learn more about keeping cool in the heat and consult the T’s Extreme Heat Guide.  

What to Expect on the T 

• In addition to operating trains at reduced speeds if necessary, the MBTA will have crews performing track inspections and prepared to make emergency repairs as needed.  

• Overhead wires that power some MBTA trolleys and trains expand and sag during extremely hot weather. MBTA personnel are making adjustments to prevent low-hanging wires.  

• Air conditioning is being checked and repaired wherever needed. Just like home, buses stay cooler when the windows are closed. Riders can help keep things cool by closing open bus windows.  

Report a Hot Vehicle

Riders are strongly encouraged to let MBTA staff know if there is an air conditioning issue on your bus or train. Tell your operator, let a station official know, call 617-222-3200, send us a message, or message the MBTA on X @MBTA. Be sure to include your bus or train number.