Boston broke the heat record at 96 degrees. Here's how long the steamy weather will last.

Tuesday brought summerlike conditions across the Boston area, with Boston’s afternoon high reaching 96°F and beating previous May record highs. Temperatures were in the mid to upper 90s, well above normal for mid May. Wednesday is expected to be a bit cooler, but conditions will remain very hot. Real relief is not expected until Thursday. Several locations set or tied record spring temperatures, including Boston tying for the hottest spring day on record and Providence setting a new daily high record. Afternoon storms are possible, so travel may be affected.

"While a bit cooler on Wednesday, it will still be very hot with real relief not expected until Thursday. Temperatures on Tuesday will be well above normal for mid May, in the mid to upper 90s. While a bit cooler on Wednesday, it will still be very hot with real relief not expected until Thursday. pic.twitter.com/AgekEbqY2z- NWS Boston (@NWSBoston) May 19, 2026"

"Tuesday felt a lot more like July than May across the Boston area. Previous high temperature records for this date in Boston were soundly beaten by Tuesday afternoon's high of 96. And, summerlike conditions aren't quite done for the region. Here's what meteorologists are saying about Tuesday's record heat and when cooler, more seasonable temperatures are expected to return."

"Checked with NWS, they're deciding to round down to 96° as the high after C to F conversion.Still, hot is hot. Boston sees the hottest spring day in 76 years (1944) & ties for 2nd hottest spring day on record!Near 90° tomorrow with isolated record highs and afternoon storms.... pic.twitter.com/3sAhXil3yq- Ken Mahan (@WeathermanMahan) May 19, 2026"

"Heat winding down for the day, but Providence joins the club, setting a new daily high record with 92°. Boston ends the day tied for the hottest spring day ever, tying 1880 at 97°. Storms are lurking now, so be careful on the drive home. #mawx #riwx #boston @BostonGlobe pic.twitter.com/ALwXawbcIy- Ken Mahan (@WeathermanMahan)"

Read at Boston.com