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In the 80s today, and then temperatures plunge

There’s summer in the air, but it won’t stay for long. A cold front is making its way toward us, bringing some unseasonably cold temperatures and possible overnight showers, forecasters said.

Conditions will be warm and dry for most of today, with sunny skies and temperatures climbing as high as 83 degrees. The last time Boston was that warm was Sept. 12, when the city reached 88 degrees, according to weather service records. That warmth should recede by this afternoon as skies become mostly cloudy, along with a chance of showers and low temperatures in the mid-50s.

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“We have this cool Canadian maritime high pressure system building, and we’re going to have what’s called a backdoor cold front move in,” said National Weather Service meteorologist Kim Buttrick. “We have a risk for showers tonight in advance of that backdoor cold front, and the next chance for a good dousing of rain will come later in the week.”

Temperatures should become dramatically cooler by Tuesday, only reaching as high as 56 degrees. Some light showers could continue into the morning. Skies will stay mostly cloudy throughout the day, with low temperatures dropping into the mid-40s.

Wednesday will be cloudy but dry during the day, with high temperatures climbing into the mid-60s. Some isolated showers could fall during the evening as low temperatures sink to 56 degrees.

Mostly cloudy skies will continue Thursday, but high temperatures should rise to a more seasonable 73 degrees. Some light showers could start falling overnight as temperatures drop into the lower 60s.

“It’s likely that Friday into Saturday we’ll have a good rainfall,” Buttrick said.

Friday should be mostly cloudy, with highs near 69 degrees. Some sprinkling rain could fall early in the day, become heavier in the evening as temperatures sink into the upper 50s. Showers and thunderstorms are likely overnight and into Saturday morning, forecasters said.

Catalina Gaitan can be reached at catalina.gaitan@globe.com. Follow her on Twitter at @catalina_gaitan.
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