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Boston Heat Advisory in Effect Until 7 PM, Cooler Temps and Showers Expected Following Heatwave

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Published on July 17, 2025
Boston Heat Advisory in Effect Until 7 PM, Cooler Temps and Showers Expected Following HeatwaveSource: Google Street View

Bostonians, brace yourselves for a sweltering Thursday. As temperatures climb into the upper 80s and lower 90s, humidity will amplify the heat, pushing feels-like temperatures close to 100 degrees in several neighborhoods. Stay hydrated and never leave children or pets in a parked car, as it can quickly become a dangerous heat trap. NBC Boston reports that a Heat Advisory remains in effect until 7 p.m. today.

Later today, relief is expected with the arrival of a cold front. According to NOAA, there's a chance of showers and thunderstorms before 4 p.m., followed by a slight chance after 5 p.m. However, Greater Boston should largely be spared from widespread storms, with stronger storms more likely across western Massachusetts, parts of central Massachusetts, and northern New England.

The true respite comes on the heels of the passing front. With it, Friday will bring a notable decrease in humidity and a dip in temps, offering a high near a more comfortable 83 degrees. Be ready for a sunny day, buoyed by a light north wind 13 to 17 mph, gusting up to 29 mph, as per NOAA's forecast.

However, don't put away those umbrellas yet; more unsettled weather encroaches by the weekend's end. NBC Boston indicates that another system rolls in on Sunday with a chance of rain and thunderstorms, particularly by afternoon and evening. Despite potential for wet weather, Sunday's temps will only reach the upper 70s, providing a break from the heat.

Monday and the days following look promising if you fancy sunnier skies. The National Weather Service predicts sunny conditions with a high near 78, maintaining a streak of fair weather with nightly lows averaging around the low-to-mid 60s. As Boston advances through the week, the warmth, absent of the recent oppressive humidity, will settle in comfortably, paralleling a typical mid-July pattern for the region.

Boston-Weather & Environment