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Boston Weather: Mild Fall Temps, Patchy Fog, and Light Showers Highlight Week's Forecast

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Published on September 16, 2025
Boston Weather: Mild Fall Temps, Patchy Fog, and Light Showers Highlight Week's ForecastSource: Google Street View

The forecast in Boston this week indicates that residents can expect a touch of fog and a mix of fall temperatures, complemented by potential light rainfall. According to a report from the National Weather Service, Tuesday morning began with patchy fog before giving way to partly sunny skies and highs approaching 73 degrees. A calm eastern wind is expected to pick up slightly in the morning hours.

As night falls, the city will see a return of patchy fog between the small hours of 2am and 5am, transitioning to a mostly cloudy night with lows hovering around 55 degrees. Despite the fog, the skies are anticipated to remain mostly clear by the evening, with winds easing off. NBC Boston highlighted that on Wednesday, temperatures are expected to embody the essence of fall, reaching the low to mid-70s, with overcast conditions and a chance of light showers, particularly to the south.

Wednesday night's forecast brings a 30% chance of precipitation after midnight with the possibility of light showers, and similarly mild temperatures are anticipated leading into Thursday. The latter part of the week shifts slightly in tone, with a brief warmup on Friday that could see temperatures nearing 80 degrees, as per the National Weather Service forecast. Subsequently, another cold front is expected to nudge temperatures back down to the mid-60s for Saturday.

If the week's trend holds, this weekend looks favorable for outdoor activities with sunny skies and temperatures rising to a comfortable 68 on Saturday and nearing 73 by Sunday. The light and variable winds on Sunday should become south 5 to 9 mph by the morning, ensuring a mostly sunny outlook for any potential plans. As the National Weather Service asserts, "A chance of showers, mainly before 9am, partly sunny," will greet Boston on Thursday with temperatures hitting the upper 70s, and a calm wind changing to a southerly direction in the morning hours.

With no substantial rainfall in sight for Saturday and Sunday night, Bostonians can expect mostly clear skies and agreeable temperatures, setting a serene stage for any late-summer excursions. As of the latest updates, evenings will remain cool and mostly clear, with lows dropping into the low 50s. The upcoming weekend promises a stretch of dry weather, a gentle reprieve according to NBC Boston, perfect for those eager to enjoy the New England scenery with leaf-peeping season on the horizon.

Boston-Weather & Environment