News Summary
Boston is preparing for a significant heat wave with an excessive heat advisory in effect for Thursday and Friday. Temperatures are expected to soar into the low to mid-90s, accompanied by high humidity. With dew points climbing, outdoor activities may become uncomfortable. Friday’s peak temperature could exceed 95 degrees, especially affecting the vulnerable populations. Residents are urged to take precautions against the extreme heat while storms may develop later in the week, leading to cooler temperatures over the weekend.
Boston is bracing for a heat wave this week with an excessive heat advisory already issued for Thursday and Friday. Residents can expect soaring temperatures and high humidity, particularly on these two days, with forecasted highs in the low to mid-90s.
The weather leading up to the heat wave has been relatively pleasant. On Tuesday, Boston recorded temperatures in the 70s, accompanied by sunny skies and light winds. A shift in weather patterns is anticipated as a southerly flow starts to develop, pushing the temperature up. By Wednesday, highs are expected to reach the mid-80s.
However, conditions are expected to change rapidly. As temperatures rise, the humidity will also increase. Dew points, which measure the moisture in the air, are set to climb, indicating that outdoor activities may become quite uncomfortable. On Friday, dew points could reach the upper 60s and low 70s, contributing to heat index values of over 100 degrees, making it imperative for residents to stay hydrated and take precautions against the heat.
The intensity of the heat is predicted to peak on Friday, with the city possibly reaching temperatures exceeding 95 degrees. These soaring numbers can pose serious health risks, particularly for vulnerable populations such as the elderly and those with pre-existing health conditions.
As Boston continues to experience this heat wave, there is a potential for storms to roll in Friday afternoon and evening, when a cold front is expected to pass through the region. The severity of these thunderstorms will largely depend on how warm the atmosphere becomes earlier in the day. Following the storms, the weekend forecast indicates continued chances for showers, particularly on Saturday and Sunday, coupled with cooler temperatures around 80 degrees.
Looking ahead, after the oppressive heat, the region should anticipate a return to cooler, less humid air next week as weather conditions stabilize. This transition should alleviate the uncomfortable summer heat and help restore typical August weather patterns.
In the meantime, residents and visitors are advised to stay vigilant during the heat wave. Taking breaks in shaded or indoor areas, utilizing fans or air conditioning, and remaining well-hydrated will be crucial for coping with the extreme temperatures.
This week’s weather highlights also extend beyond Boston. Southeastern Massachusetts is predicted to see similar highs in the low to mid-80s, and areas across central and western Massachusetts can expect mostly sunny skies with comparable temperatures. Meanwhile, Rhode Island and New Hampshire are forecasted to reach the low 80s, while Vermont and Maine will likely have high temperatures in the upper 70s to low 80s.
For those planning outdoor activities, awareness of the heat advisories and preparation for changing weather conditions will be essential to ensure safety. As the summer progresses, keeping an eye on weather updates will help residents adjust their plans accordingly.
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Additional Resources
- NBC Boston: Comfortable Air Over Greater Boston
- Wikipedia: Weather
- NBC Boston: Cooler Air Today
- Google Search: Boston Weather
- Boston 25 News: Cold, Clear, Mild, Soggy
- Google Scholar: Boston Heat Wave
- NBC Boston: Fourth of July Forecast
- Encyclopedia Britannica: Climate
- NBC Boston: Severe Weather Forecast
- Google News: Boston Heat Advisory

Author: STAFF HERE BOSTON WRITER
BOSTON STAFF WRITER The BOSTON STAFF WRITER represents the experienced team at HEREBoston.com, your go-to source for actionable local news and information in Boston, Suffolk County, and beyond. Specializing in "news you can use," we cover essential topics like product reviews for personal and business needs, local business directories, politics, real estate trends, neighborhood insights, and state news affecting the area—with deep expertise drawn from years of dedicated reporting and strong community input, including local press releases and business updates. We deliver top reporting on high-value events such as Boston Marathon, Head of the Charles Regatta, and Boston Harborfest. Our coverage extends to key organizations like the Greater Boston Chamber of Commerce and Associated Industries of Massachusetts, plus leading businesses in finance, biotech, and insurance that power the local economy such as Fidelity Investments, Biogen, and Liberty Mutual Insurance. As part of the broader HERE network, we provide comprehensive, credible insights into Massachusetts's dynamic landscape.