Another MA Heatwave On Deck

BOSTON — A heatwave expected to stretch over several days will begin this weekend as temperatures break out of this cloudy cool.

"We likely won't see 100" degrees, the National Weather Service offered as a consolation. Still, temperatures will be in the high 80s and 90s from Sunday through Thursday, according to forecasts.

Monday and Tuesday appear to be the hottest days with Boston highs of about 95 degrees. Things will begin to cool off late Thursday as some rains move in.

"Oppressive heat and humidity is possible across much of southern New England Monday through Wednesday, with the exception of Cape Cod and the Islands as well as the immediate South Coast," the National Weather Service said. "Heat index values are forecast to be in the mid to upper 90s Monday through Wednesday."

The National Weather Service said the heat could rise to "dangerous" levels, The Boston Herald reported.

It would be the second heatwave of the summer in Massachusetts. A heatwave is technically three consecutive days of at least 90 degrees.

Acting Boston Mayor Kim Janey called on more ways to beat the heat in the city, including more access to open space and more built-in sprinklers. She also planned on opening cooling centers earlier.

"We are a northern city as we all know, we are in the Northeast," she said, according to the State House News Service. "And still, we see an increase of 90-degree weather. And so we need more access to open space, we need more access to places where we can cool off, and we have to keep doing the work in terms of ensuring we are protecting our climate, our planet, from climate change."

The entire country will be undergoing a warm-up, with all-time records possible in the Pacific Northwest.

Boston-area forecast via NWS

Saturday — Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 84. Southwest wind 9 to 15 mph, with gusts as high as 26 mph.

Saturday Night — Mostly cloudy, with a low around 71. Southwest wind around 10 mph, with gusts as high as 22 mph.

Sunday — Partly sunny, with a high near 89. Southwest wind 10 to 14 mph.

Sunday Night — Partly cloudy, with a low around 71. Southwest wind 9 to 11 mph, with gusts as high as 21 mph.

Monday — Mostly sunny, with a high near 95. Southwest wind around 10 mph, with gusts as high as 20 mph.

Monday Night — Mostly clear, with a low around 75. Southwest wind 6 to 8 mph.

Tuesday — A chance of showers after 2pm. Mostly sunny, with a high near 95. West wind 6 to 9 mph. Chance of precipitation is 30%.

Tuesday Night — Partly cloudy, with a low around 73. West wind around 6 mph.

Wednesday — A chance of showers. Mostly sunny, with a high near 93. Southwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

Wednesday Night — A chance of showers. Mostly cloudy, with a low around 72. Southwest wind 6 to 8 mph. Chance of precipitation is 40%.

Thursday — A chance of showers. Partly sunny, with a high near 91. Southwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

Materials from the State House News Service were used in this report