Boston, Massachusetts – Boston residents are set for a steamy Thursday, with thunderstorms and dangerous heat levels arriving July 17th, threatening travel and outdoor plans across the region.
According to the National Weather Service, a heat advisory continues until 7 p.m. Thursday as temperatures climb toward 90°F and heat index values soar near 97°. Showers and thunderstorms are likely after 2 p.m., possibly impacting the afternoon commute along major routes such as I-93 and the Massachusetts Turnpike. Motorists should watch for slick roads and reduced visibility during downpours. Residents are urged to limit outdoor activities, drink plenty of water, and check on vulnerable neighbors.
A southwest breeze of 6 to 11 mph offers little relief from the humidity. Storms may produce heavy rain but are expected to move through quickly, with rain totals less than a quarter inch except in stronger storms.
Friday brings a return to mostly sunny skies and more comfortable temperatures in the mid-80s, offering relief after the midweek heat. The weekend remains warm but less humid, with highs in the low 80s and minimal rain chances, making it a good window for outdoor events.
Looking ahead, scattered showers are possible late Sunday into early Monday, with mostly sunny skies dominating the start of next week. Heat eases slightly, but summer warmth holds steady across Greater Boston.
Five Day Boston Forecast (July 17–22):
- Thursday, July 17: Showers and thunderstorms likely after 2 p.m. Hot, high near 90°F. Southwest wind 6–11 mph.
- Friday: Mostly sunny, high near 84°F. Light winds.
- Saturday: Mostly sunny, high near 82°F. Low humidity.
- Sunday: Chance of showers. Partly sunny, high near 81°F.
- Monday: Mostly sunny, high near 80°F.
- Tuesday: Mostly sunny, high near 84°F.
Warnings remain in effect for heat and storms through Thursday evening. Check back for further advisories as new weather threats develop.
