Last night, temperatures cooled off quickly and we can expect a similar trend tonight, with many towns dropping into the 30s for overnight lows. There is a chance of some patchy frost in areas north and west of 495.

This fall-like air we’ve experienced over the last two days will be short-lived. By the weekend, it’s going to start feeling more like summer again! Tomorrow will have a chilly start, but we’ll warm up nicely under plenty of sunshine.

Average highs are now in the upper 60s, but we should be able to reach the low 70s tomorrow afternoon, beginning that upward temperature climb. And it doesn’t stop there! After two days in the 60s, we’ll see highs in the 70s tomorrow, followed by 80s this weekend and into the early part of next week.

Reaching 80 degrees in October isn’t unusual—in fact, we typically hit 80 once each October. However, if we manage to have four days in the 80s, that would be a bit unusual. Some days, especially along the coastline, may not quite make it to 80, with Saturday’s temperatures likely holding in the mid to upper 70s.

We’ll continue with this sunny trend through early next week. The 80-degree temperature statistics referenced are for Boston specifically.
https://whdh.com/weather-blog/another-chilly-night-before-a-summer-like-weekend/