While sitting in a nice air condition office, the MBTA kindly let's me know how hot is is outside. On hot days, I get a text notifications about the delays on the Worcester/Framingham commuter rail train due to heat restrictions.
The longer the train delays means that it's pretty hot outside. It seems that most of the delays impact the early afternoon trains. Usually by 5pm the delays aren't as bad.
Heat restrictions are a problem only with the Worcester/Framingham line. This is because CSX used welded steel rail which can expand during high heat. To avoid any derailment, trains have to go slow.
You can join in on the MBTA weather fun by signing up to the MBTA T-Alerts on their website. It's a handy notification to have when you need to know ab