You thought Monday was hot. The heat soars to near record levels on Tuesday.
Boston Globe
Heat advisories are in effect from 11 a.m., Monday through 8 p.m., Wednesday for most of Southern New England and Southern New Hampshire.
Boston Globe
The dew points are going to remain high even as temperatures fall toward Thursday and Friday. There are some signs that a stuck frontal boundary may bring a steady round of showers Thursday afternoon into Friday morning. It's after this boundary finally moves out that the drier air will move in, and right now the weekend is looking completely dry for both days — and sunny.
Rising dew points will make it feel quite muggy through Wednesday before they taper off for a more comfortable remainder of the week.
Boston Globe
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The reason for the hot weather is a strong area of high pressure to our south. This is bringing a westerly flow of air across the region at the high levels. This keeps the cooler Canadian air from reaching our region and also keeps the humidity across much of the East.
Wednesday's highs will be about the same as Tuesday's, although the heat index should stay under 100 degrees.
Boston Globe
This map shows the temperature change from Monday to Thursday across the country. Temperatures peak in the Northeast before lowering on Thursday.
TropicalTidbits.com
Some of the smoke you've been noticing this summer at times may waft across the region again on Tuesday in that flow of air. It remains to be seen just how much smoke ends up in the region, but it's possible air quality again decreases.
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Tuesday's breakdown
Greater Boston:
Look for mostly sunny skies for your Tuesday, with temperatures in the mid-90s. It will also be hot on Wednesday with temperatures in the mid-90s and a small chance of a thunderstorm in the afternoon.
Central/Western Mass.:
Temperatures will be in the low to mid-90s both Tuesday and Wednesday, with plenty of sunshine. Wednesday afternoon look for the chance for a shower or thunderstorm.
Southeastern Mass.:
Temperatures are likely to exceed 90 both Tuesday and Wednesday. There's a chance for a thunderstorm or a shower Wednesday evening.
Cape and Islands:
Mostly sunny skies after patchy morning fog both Tuesday and Wednesday. Temperatures will be more comfortable than inland areas, staying in the 80s, but humidity will be high.
Rhode Island:
With the exception of the southern part of South County, everybody will be in the 90s on Tuesday and Wednesday. There might be a shower or a thunderstorm Wednesday afternoon or evening.
New Hampshire:
Look for temperatures in the low to mid-90s over extreme southern sections on Tuesday, also in the lower 90s on Wednesday with slightly drier air and the chance for a shower or a thunderstorm.
The 7-day outlook for the Boston region.
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