High pressure will start to diminish on Thursday, allowing for mostly sunny skies across Greater Boston and much of Southern New England. However, air quality may be affected by lingering wildfire smoke, giving the sky a bluish-grey tint rather than the typical bright blue one expects on sunny days. High temperatures are forecasted to return to the 80s, accompanied by a gentle breeze.
A weak cold front is expected to push south through New England, potentially bringing a brief afternoon sprinkle or even a coastal thunderstorm. This thunderstorm may develop due to a sea breeze that forces warm air to rise and condense into precipitation along the coast. For the most part, skies are projected to remain partly to mostly clear, with temperatures slipping to the upper 50s and low 60s by Thursday night.
Looking ahead to the weekend, rain is a possibility in the forecast. In fact, the last completely dry weekend in Boston occurred on March 8-9. Since then, there have been 13 weekends consecutively featuring some rain, with 12 Saturdays and 9 Sundays experiencing wet weather.
On Friday, the weather remains predominantly dry despite a frontal boundary lingering across Southern New England. Expect a mix of sunshine and clouds with a chance for a few scattered light showers, resulting in daytime temperatures being held in the 70s.
This pattern has caused headaches for many weekend planners, as the region is on track for its 14th consecutive weekend of measurable rain. Many are feeling the impact on their weekend activities and businesses due to the incessant rain disrupting plans.
The ongoing weather pattern is being influenced by the jet stream, which has been oscillating across New England and maintaining a relatively flat trajectory. This dynamic creates a scenario where storms can pass through more frequently — similar to the difference between driving on an open highway versus navigating curvy backroads. The streamlined jet stream has significantly increased the rate of storm occurrences to roughly every three days, leading to many weekends spoiled by rain.
Specifically for Greater Boston, expect mostly sunny skies though there’s a blanket of haze overhead. Highs are projected in the low to mid-80s with westerly breezes reaching around 15 miles per hour. While there’s a very slim chance for a spot sprinkle late in the afternoon, it’s considered unlikely. As night falls, conditions should remain partly to mostly clear with lows near 60 degrees.
In Southeastern Massachusetts, expect similar conditions with mostly sunny skies transitioning to some afternoon cloud cover. Hazy skies are anticipated as temperatures peak in the low 80s, and upper 70s nearer Fall River and New Bedford. The breeze will reach around 15 miles per hour, and there exists a low chance for an isolated shower or thunderstorm in the evening. Nighttime temperatures should settle in the upper 50s.
Moving to Central and Western Massachusetts, anticipate partly to mostly sunny skies but with higher levels of haze. High temperatures will reach the low 80s from Springfield to Worcester, while Berkshire County is expected to hit mid-70s. An isolated sprinkle is possible during the afternoon hours. As night approaches, expect partly to mostly clear skies with lows in the upper 50s.
The Cape and Islands will experience a generally sunny day, although haze will still be noticeable. Highs will range from the upper 70s to low 80s, along with a breeze of about 15 miles per hour and gusts possibly hitting 20. An isolated shower or thunderstorm may pop up in the afternoon, but conditions should remain mostly clear at night with lows in the upper 50s.
Rhode Island will be partly to mostly sunny, marked by hazy conditions. Highs are expected to reach the low to mid-80s with breezy conditions, ranging from 10 to 15 miles per hour. There’s a low chance of a drizzle or isolated shower in the afternoon, but it should dry out at night with lows settling in the low 60s under partly cloudy skies.
In New Hampshire, diminishing sunshine is likely due to the incoming front, but it shouldn’t impact conditions too much, with the area remaining partly cloudy. Scattered showers could develop, mainly to the north of Berlin, with highs expected to reach the upper 70s and low 80s. Nighttime conditions will clear up, bringing lows in the mid-50s.
Vermont and Maine might see a few sprinkles near the Canadian border, but sunnier weather will prevail in the southern parts of both states. Highs will hover around the upper 70s and low 80s, and hazy skies are set to last for much of the day. Expect conditions to clear at night with lows in the 50s.
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image source from：https://www.bostonglobe.com/2025/06/11/metro/heat-and-haze-continue-across-boston-and-new-england/
