Boston, MA – Scattered thunderstorms and a sweltering 92° heat index could disrupt travel and outdoor plans across eastern Massachusetts this afternoon.
According to the National Weather Service, storms may begin popping up after 11 a.m., with stronger cells likely after 3 p.m. in the Boston metro. Wind gusts and heavy downpours may affect major roadways including I-93, I-95, and Route 1. While rain totals are expected to be low, localized flooding is possible in poor drainage areas.
Expect patchy fog early, followed by hot and humid conditions. Heat index values may reach 98° in spots. Residents are advised to limit outdoor activity, stay hydrated, and monitor rapidly changing weather conditions.
On Wednesday, a high of 87° is expected with a slight chance of lingering showers in the afternoon. Drier air moves in Wednesday night into Thursday morning, but pop-up thunderstorms could return Thursday afternoon, particularly west of Boston.
The July 4th holiday weekend looks favorable overall. Independence Day will be sunny and warm, with a high near 83° and light north winds—ideal for barbecues and fireworks. Friday night stays clear, with lows in the low 60s.
By Saturday and Sunday, temperatures climb back into the mid-80s, with light breezes and mostly sunny skies. Storm chances return Monday afternoon.
🗓️ Five-Day Forecast: July 2–July 6
- Wednesday: High 87° | Slight chance of afternoon showers
- Thursday: High 89° | PM storm risk, mostly sunny early
- Friday (July 4th): High 83° | Sunny, calm winds
- Saturday: High 86° | Mostly sunny
- Sunday: High 87° | Partly sunny, dry