Temperature rises to a sweltering 97 in Boston

The temperature at Logan International Airport rose to 97 this afternoon as the region sweated its way through a return of summer weather that had been fading in the rearview mirror.

The National Weather Service issued a heat advisory for much of the state, saying the combination of heat and humidity would make it even feel even hotter and could cause heat-related illnesses.

Plenty of sunshine is expected, and most areas will remain dry. But scattered severe thunderstorms were expected to work into Western Massachusetts this evening. Shortly after 6 p.m., weather service radar showed a line of strong storms that looked likely to clip the western edge of the state during the next few hours. Temperatures will drop into the mid-70s overnight.

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“Tomorrow is not going to be quite as hot, but with dew points in the 70s it will still feel pretty miserable,” said Alan Dunham, weather service meteorologist.

Temperatures will climb into the mid-80s Thursday, with heavy rain likely. Showers and thunderstorms are likely after 1 p.m. and could bring heavy rain and wind gusts up to 28 miles per hour. Sunshine will peek through the clouds, but scattered showers are likely until at least 9 p.m.

Showers are possible early Friday, until about 11 a.m., and a cold front will enter the region. Temperatures will crest in the mid-70s, and skies will be partly sunny, forecasters said. Some showers will continue overnight, but will diminish by 1 a.m. Saturday.

Saturday and Sunday will see pleasant weather, with mostly sunny skies and temperatures hovering in the upper 60s to low 70s. This dry, cool weather should last until at least Tuesday.

“We will have a beautiful, delightful weekend,” Dunham said. “Conditions will definitely feel like fall.”