Boston, Massachusetts – Sweltering heat and summer storms are set to slam Massachusetts on Friday, July 25, with Boston bracing for a 97°F high and a heat index soaring to 103°F. Afternoon thunderstorms could spark local power outages, and travelers should anticipate slowdowns on I-93 and Route 1, especially during the evening commute.
According to the National Weather Service, thunderstorms could begin as early as 3 p.m. Friday, bringing brief but intense downpours, gusts up to 20 mph, and localized flash flooding. Rainfall amounts may exceed a tenth of an inch, particularly in heavier storms. Boston EMS and public health officials urge residents to hydrate, limit outdoor activity, and avoid prolonged sun exposure.
Friday night will stay muggy with a low near 70°F, and additional storms may linger through midnight, especially west of Boston.
Looking ahead, Saturday brings relief, with mostly sunny skies and highs near 81°F. Winds shift northward and conditions stay dry through Sunday, with another 81°F high expected.
By Monday, temperatures return to the upper 80s (around 86°F), with breezy conditions developing by afternoon. Rain chances increase Monday night into Tuesday, with more humid air and scattered storms likely.
📆 Boston 5-Day Weather Snapshot: Friday, July 25 – Tuesday, July 30
- Friday: 97°F high | Thunderstorms after 3 p.m. | Heat Index up to 103°F
- Saturday: 81°F high | Mostly sunny, calm winds
- Sunday: 81°F high | Partly sunny, light breeze
- Monday: 86°F high | Mostly sunny, breezy afternoon
- Tuesday: 91°F high | Showers/storms possible late
⚠️ Stay weather-aware as storms and heat collide Friday. More updates expected Friday morning as conditions evolve.
