Boston, MA – Near 90-degree heat will grip Boston Monday before strong storms roll in Tuesday night, threatening evening travel and outdoor plans.
According to the National Weather Service in Norton, Monday will be sunny with a high near 87°F, but conditions change sharply by Tuesday. A cold front approaching from the west will trigger showers and thunderstorms after 4 p.m. Tuesday, becoming likely by 7 p.m. South and southwest winds will increase to 13 mph, raising the risk for lightning, gusty winds, and localized street flooding across Suffolk County and along I-93.
While Monday remains calm and hot, Tuesday’s evening commute could be hazardous. Residents are urged to secure outdoor items, avoid flooded roadways, and stay indoors during storms. Rain chances sit at 60% for Tuesday night, with a low around 72°F.
By Wednesday, skies clear with highs near 88°F. The drier trend continues through the 4th of July, which looks mostly sunny and warm — perfect for parades and fireworks if trends hold. Still, lingering moisture from Tuesday’s front may create brief afternoon showers in some inland communities.
🔎 Five-Day Boston Weather Outlook
- Monday (June 30): Sunny, high 87°F. Calm early, southeast winds 5–7 mph in the afternoon.
- Tuesday: Showers and storms likely after 4 p.m., high near 90°F. Chance of precipitation 60%.
- Wednesday: Mostly sunny, high 88°F. West winds up to 10 mph.
- Thursday (July 3): Mostly sunny, high 89°F. Comfortable, dry conditions.
- Friday (4th of July): Sunny and seasonable, high near 85°F. Light winds, low humidity.
