Metro
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    Labor Day weekend is expected to get steadily hotter

    Sunrise over Boston.
    David L. Ryan/Globe Staff
    Sunrise over Boston.

    A Labor Day weekend that started on a cool note is expected to end on a hot one.

    After Saturday started out with a low of 63 degrees in Boston, Labor Day Monday is likely to see a high in the low 90s, according to Eleanor Vallier-Talbot, a meteorologist at the National Weather Service.

    On Saturday, temperatures were expected to remain steadily in the mid-70s through the afternoon under sunny skies in the city.

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    “It’s a beautiful day,” Vallier-Talbot said. An overnight low is expected in the low 60s, she said.

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    Sunday is also expected to be mostly sunny with a high in the low 80s, according to the weather service.

    Both weekend days are likely to continue a break from humidity. But forecasters do not expect that to last.

    As temperatures climb into the 90s Monday, the dew point — a marker of humidity — will begin creeping up to about 70 degrees, Vallier-Talbot said. Tuesday will be another hot one with more temperatures expected in the low 90s and high humidity.

    Scattered showers are possible Tuesday afternoon into Wednesday and Wednesday night into Thursday, she said.

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    After a dip into the 80s midweek, temperatures are likely to climb again Thursday, perhaps reaching 90 yet again that afternoon, Vallier-Talbot said.

    Lucas Phillips can be reached at lucas.phillips@globe.com.