Boston, Massachusetts – Bostonians should prepare for a surge of summer heat returning Thursday, with daytime highs climbing back into the upper 70s and low 80s through the weekend. The big headline: Friday and Saturday look sunny and warm, but overnight lows will stay comfortably cool, giving some relief from daytime warmth.
According to the National Weather Service in Norton, mostly cloudy skies linger through Wednesday night before conditions turn partly sunny on Thursday. Highs will reach 78°F in Boston on Thursday and rise to 82°F by Friday, while nighttime lows drop into the upper 50s and low 60s. No rain is expected through Sunday, so outdoor plans and travel across Suffolk and Essex counties should go uninterrupted, but anyone sensitive to heat should take care midday, especially by Sunday when highs approach 90°F.
Winds will be light and variable, providing little cooling relief during peak afternoon hours. The warm stretch continues into early next week with sunny skies and upper 80s expected Monday.
For those commuting on I-93 or spending time near the Charles River, keep sunscreen and water handy as UV indices climb under clear skies. Charge devices now, since high pressure patterns like this can bring unexpected brief outages.
This pattern of hot days and cool nights is expected to persist at least through Tuesday. Updates will be issued if air quality alerts or advisories develop.
Five Day Forecast for Boston, MA:
- Thursday: Partly sunny, high 78°F, low 59°F
- Friday: Sunny, high 82°F, low 60°F
- Saturday: Sunny, high 83°F, low 64°F
- Sunday: Sunny and hot, high 89°F, low 68°F
- Monday: Mostly clear, high near 87°F, low 70°F
