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Boston weather: Cooler Wednesday, more showers possible later Thursday

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Metro Boston, North Shore and Metro West: After a warm and somewhat humid day on Tuesday a cold front slid across northeast Massachusetts and the Boston area late in the afternoon and made quite a splash. Heavy showers, thunderstorms and locally gusty winds were reported as the line of heavy weather moved across the local area. The timing was such that the late afternoon commute was disrupted with slick roads and flooding of poor drainage areas.

The cold front drifted south of our area overnight and a cooler and less humid air mass is now in place. Wednesday is expected to be partly cloudy and cooler as an ocean breeze will persist through the day. High temperatures should be slightly cooler than average with highs ranging from 65 to 70 degrees, coolest along the shore. East winds average 8 to 15 mph.

That east wind will continue through Thursday as high pressure sets up across Maine and southeast Canada. Meanwhile, low pressure will push northeast through the eastern Great Lakes during Thursday and eventually drag a warm front northward toward southern New England by Friday. As high pressure retreats into the Atlantic on Friday the door will then be open for a good chance of showers later Thursday night and more likely for Friday. A rumble of Thunder is also a possibility on Friday.

Clouds increase Wednesday night with mostly cloudy skies Thursday and Thursday night. There is a chance of showers Thursday but then the shower threat increases overnight into Friday. Temperatures in the 50s Wednesday night, near 60 Thursday night. Highs Thursday stay in the 60s, perhaps nudging 70 inland. Then on Friday it turns milder with highs into the 70s.

The warm front lifts north of us during Friday with a cold front sweeping through by early Saturday. This will keep the threat for showers ongoing Friday night into Saturday morning. Skies become partly sunny by Saturday afternoon with a sunny and seasonably warm day Sunday. Highs over the weekend in the 70s, nudging 80 across the interior.

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