Boston, Massachusetts – Scorching temperatures and rising humidity are set to grip Massachusetts through Monday, triggering a heat advisory for much of the state, including Boston, Worcester, and Springfield. Daytime highs will climb into the 90s this weekend, with Monday expected to bring the most extreme heat — and potential health risks — as the heat index soars toward 100°.
According to the National Weather Service in Boston, the heat advisory runs from 7 a.m. Sunday until 8 p.m. Monday, covering much of southern New England except the Berkshires and South Coasts. The highest heat index values will occur Monday afternoon, with real-feel temperatures pushing triple digits across eastern and central Massachusetts.
Residents should limit outdoor activity, drink plenty of fluids, and avoid prolonged sun exposure. Vulnerable groups — including seniors and young children — face a higher risk of heat exhaustion or heat stroke. If you don’t have access to air conditioning, seek out local cooling centers or shaded public spaces.
Roadways like I-95, I-90, and Route 2 could see heat-related slowdowns or emergency calls. Power usage may spike statewide, so officials recommend charging devices early and conserving electricity where possible.
Expect slightly cooler air by Tuesday, but the weekend heat will hold strong through at least Monday night, especially in urban areas where heat lingers overnight.
🔎 Five-Day Forecast for Boston, MA (July 5–10)
- Saturday (July 5): Mostly sunny, high near 86°F. Light southwest breeze.
- Sunday (July 6): Hot and sunny, high of 93°F, low of 73°F.
- Monday (July 7): Hottest day — 95°F with heat index up to 100°. Mostly sunny and humid.
- Tuesday (July 8): Chance of thunderstorms after 2 p.m. High near 87°F.
- Wednesday (July 9): Slightly cooler, mostly sunny with highs around 81°F.
