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Boston's Weather Roller Coaster, Sunny Skies Turning to Showers with Potential Weekend Thunderstorms

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Published on September 03, 2025
Boston's Weather Roller Coaster, Sunny Skies Turning to Showers with Potential Weekend ThunderstormsSource: Google Street View

Boston's weather is showing itself to be something of a gentle roller coaster this week, with temperatures mildly seesawing and a mix of clarity and clouds predicted. We’re currently experiencing a refreshing clarity in the skies, with a sunny high near 78 today and climbing temperatures that are expected to reach into the 80s by Thursday, according to the National Weather Service. But as the weekend approaches, Bostonians can prepare to quickly shed their autumn layers as Friday is set to bring a sharp spike in both heat and humidity.

Despite the solar abundance, the chance of rain refuses to be entirely dismissed. The forecast holds a slight chance of showers late Thursday night, hinting to not fully depend on the sunshine's longevity. This wets the stage for a possibility of thunderstorms with an accompanying 30% chance of precipitation, as night enshrouds the city. Friday then rolls in with a 30% chance of showers mainly before 7 am, but manages to return to mostly sunny, with a high near 85 degrees, as per NBC Boston's report.

Saturday could bring more showers in the afternoon, with a 40% likelihood, thus Boston's residents might want to carry an umbrella alongside their sunglasses. The weekend temperamental weather serves as a precursor to a more significant shift, with "showers likely" the following evening and a 60% chance of precipitation, along with the potential for patchy fog later in the night.

As Sunday unveils itself, predictions propose a drop in temperature to a cooler 75 degrees, accompanied by a complementary 50% chance of showers. The skies are to begin with partial sunshine, signalling a transition as the winds switch and the humidity falls off the day's edge. NBC Boston forecasts the sunshine will decidedly take a short recess, leaving the clouds to linger above and the day to unfold at a more languid pace, with improvements to come only gradually.

Attention also turns to a developing weather system far offshore in the eastern Atlantic. While it's still a week away from any land threat, with potential to burgeon into a major hurricane, it’s an item of note for those in the path of such oceanic tempests. Islanders of the Lesser Antilles are advised to keep a vigilant eye on the evolution of this system.

In local terms, the New England region has more than the weather to consider. As September unfolds, leaf peepers are looking forward to the annual fall foliage spectacle. However, the region’s trees are showing signs of stress, not due to cold spells, but because of persistent dry weather, indicating that this year’s colors might be muted compared to years past.

Boston-Weather & Environment