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Cool temperatures, rain likely across Eastern Mass.

What a difference a day makes!

The temperature rose to 87 Wednesday in Boston, but may not make it to 70 today.

Continue reading below

It could be the coolest day in almost a month. The last time Boston saw a daytime high below 70 was June 27, when the reading at Logan International Airport reached 66 degrees for the day.

Chances for rain across the region will increase throughout the day. Eastern Massachusetts has the greatest chance of showers. Dewpoints are expected to drop into the 40s, according to the National Weather Service.

Skies will stay mostly cloudy. A northeast wind will gust to around 15 miles per hour later in the day. Boston could see a quarter inch of rain by the evening.

Rain will continue Friday, with a 60 percent chance of showers for Boston. Temperatures will rise into the low 70s Friday, according to the weather service. Rain will diminish across most of the state in the afternoon, except in northeastern Massachusetts, where it could linger into the evening.

“We will see drier weather and partial clearing on Friday night, setting things up for a beautiful Saturday,” said meteorologist Alan Dunham.

Temperatures will become seasonable Saturday, climbing into the mid-80s. The chance of showers will increase into the evening, but significant precipitation isn’t expected.

On Sunday, rain and thunderstorms will likely develop around noon. Skies will be cloudy, with temperatures in the low 80s, Dunham said.

The weather trend for next week calls for drier and less humid weather, possibly into Wednesday, according to the weather service.

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Jasper can be reached at jasper.craven@globe.com or on Twitter @Jasper_Craven
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