Another beauty of a day: Boston and New England will continue to enjoy refreshing summer air and sunshine Tuesday

Boston Globe

4 days ago

Tuesday brings us a delightful stretch of calm weather with mostly sunny, blue skies stretching from Boston to all of New England. High pressure continues, settling winds and holding dry air across the region.
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Highs will build to a comfortable upper 70s after a morning start in the low 60s. The region stays clear into the evening with lows slipping to the 50s for some.
The setup — quiet and bright
High pressure continues to reign supreme over the Northeast to set up a beautiful Tuesday. The difference on Tuesday versus Monday is that the wind will be calm as high pressure keeps skies blue across the entire New England region. The bit of haze on the horizon from Monday will also have faded away come Tuesday.
High pressure will keep mostly sunny skies in place across New England.
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The commute in will be refreshingly cool, with temperatures in the low 60s across the region. The afternoon will likely push into the mid- to upper 70s. Without the strong northwesterly flow from Monday, a sea breeze could keep Boston and the North and South Shores closer to the mid-70s.
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Highs on Tuesday will reach the upper 70s for most of New England.
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The thing we all might notice, and enjoy, most is the comfortable air. The cooler Canadian air is very dry, dropping dew points to the 40s and low 50s across the region. We have only seen dew points this low just a few times this summer. The dry air will allow for easy evaporative cooling of the surface at night, allowing temperatures to slip to the 50s for most, for a really comfortable evening.
Dew points will stay low for the next couple of days before returning to muggy levels later in the week.
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Overnight low temperatures Tuesday will fall to the mid-50s for most.
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On Wednesday, we'll see a flip to a southerly flow as high pressure drifts to our south. The region stays dry with mostly sunny skies, but the heat and humidity will start to climb. By Thursday, the 90s will be back in play with dew points pushing into the noticeable 60s.
Friday may likely be a heat alert type of day, with highs in the low to mid-90s with high enough dew points to make 'feels-like' temperatures closer to the triple digits. Coincidentally, Friday afternoon will likely be our next chance for widespread rainfall with afternoon showers and thunderstorms possible.
Weekend sneak peek
This weekend is looking a touch unsettled as Friday's front will likely slow down when meeting the strong North Atlantic Bermuda high. This will leave a storm track just to the south of the region for the weekend, prompting a round of scattered showers or thunderstorms on both Saturday and Sunday, mainly in the afternoon.
Highs are tracking closer to 80 degrees for both weekend days.
Wednesday's breakdown
Greater Boston:
Mostly sunny and nice. Highs in the mid- to upper 70s. More like the mid-70s along the North and South Shores. Staying clear at night. Lows to the upper 50s, low 60s.
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Southeastern Mass.:
Sunny with highs in the mid-70s, a touch cooler along the coast. Staying clear at night with lows in the low 60s.
Central/Western Mass.:
Bright and lots of sunshine. Highs in the upper 70s, mid-70s in the Berkshires. Clear at night with lows in the upper 50s and low 60s.
Cape and Islands:
Clear and bright. Highs to the low and mid-70s. Staying clear at night with lows in the 60s.
Rhode Island:
Sunny with highs in the mid- to upper 70s. Staying clear at night. Lows in the 60s.
New Hampshire:
Bright with highs in the low to mid-70s. Lows in the 50s under clear skies.
Vermont/Maine:
Mostly sunny across both states. Highs into the mid- and upper 70s. Lows in the low 50s under partly to mostly clear skies.
A look at the forecast weather across Boston for the next seven days.
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