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The Boston Globe

Metro

After a warm Monday, temperatures should plunge

Enjoy today’s gloriously warm and sunny weather. It won’t stick around for long.

“We are expecting a soaking rain Tuesday into Tuesday evening, and by Wednesday morning, the mild temperatures will swing the other way and become unseasonably cold,” said National Weather Service meteorologist Kim Buttrick.

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High temperatures today are expected to climb to an unseasonably mild 76 degrees, with some areas inching towards 80. Some clouds should arrive in the evening as temperatures sink into the mid-50s.

“Rain could start as early as 8 a.m. [Tuesday], but it’s going to become more likely in the afternoon and evening,” Buttrick said. Showers should become more intense after 11 a.m., dropping between a quarter-inch and a half-inch of rain by the afternoon. High temperatures will reach toward the high 60s before plunging into the mid-30s in the evening, with some areas in the interior dropping below freezing.

Rain should peter out overnight, but not before soaking Boston with up to another inch of rain, forecasters said.

Wednesday should be sunny but cold, with highs cresting in the low to mid-40s. Skies should remain clear through the evening as temperatures drop to the 30s along the coast and the 20s in the interior.

Similar conditions will appear Thursday, with sunny skies and highs in the mid-40s and low 50s. Low temperatures should drop to the 30s along the coast and high 20s in the interior on Thursday night.

The week should end on a dry but chilly note, with sunny skies and highs in the mid-40s to mid-50s on Friday. Some clouds should roll in during the evening as low temperatures drop to the mid-30s to around 40.

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

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