Prepare to turn back on the air conditioning and get ready for three days of heat and humidity, according to National Weather Service forecasts.

Although Boston will welcome a cold front and chance of rain later this week, a heat advisory is currently in place through Wednesday.

Monday will say goodbye to the weekend’s rain as the sun returns and temperatures near 90 for the Boston area and inland Massachusetts, compared to about 87 degrees on the coast, said NWS meteorologist Emily McMinn.

“We’re also going to see temperatures kind of in the low 70s during the overnight period as well, so it’ll be a bit of a struggle to cool off overnight,” McMinn added.

High humidity will contribute to feels-like temperatures in the mid-to-upper 90s – “even closer to 100 degrees in some cases” – throughout the early week, McMinn said.

Monday night may bring “light/calm winds with low temps in the 60s to near 70,” in addition to some low fog, according to the NWS.

Regarding the Canadian wildfire smoke that drifted to the East Coast this weekend, the NWS forecast said, “we also will need to watch for some more smoke/haze … but the worst of that may remain to our north.”

Temperatures will peak Tuesday in the mid-90s, and although a heat advisory runs through Wednesday, hump day will be a bit cooler, according to McMinn. “Those (Monday and Tuesday) are the two worst days for sure,” she said.

The chance for rain will increase as a cold front heads in Thursday, McMinn said, expecting to see temperatures in the low 70s toward the end of the week.

Scattered showers and thunderstorms are a possibility sometime Wednesday or Thursday, according to NWS forecasts.

McMinn also expected a break in the humidity break at the end of the week, with dew points dropping to the mid 50s.

“It’ll really start to feel a lot better Thursday and going into the weekend,” McMinn said.

Typical summertime clear skies and weather will treat Boston over the weekend, near 80 or 85 degrees.

With the heat advisory in effect through Wednesday, the City of Boston’s cooling resources and guidances can be found here.