Boston, Massachusetts – Bright sunshine is already warming sidewalks, rooftops, and city streets across eastern Massachusetts, but the hottest weather is still on the way. Temperatures will climb steadily through the afternoon before an even more intense surge of heat settles over the Boston area during the middle of the week.
According to the National Weather Service in Norton, today remains sunny with a high near 89 degrees, but Tuesday becomes the hottest day of the stretch with a high near 98 degrees and heat index values as high as 102 degrees. Southwest winds of 8 to 15 mph, with gusts approaching 25 mph, may offer only limited relief during peak afternoon heating.
The warming trend will be felt across Boston, Cambridge, Quincy, Somerville, Brookline, Newton, and surrounding communities. Commuters traveling on Interstate 93, Interstate 90 (Massachusetts Turnpike), Route 128 (I-95), and Storrow Drive should prepare for increasing heat radiating from pavement and slower travel if vehicles overheat or roadside assistance calls increase.
The broader national weather pattern continues to feature dangerous heat expanding into parts of the Northeast while severe thunderstorms remain concentrated across portions of the Plains and Midwest. Southern New England stays dry through midweek under strong high pressure, allowing temperatures to climb well above seasonal averages.
Anyone working or exercising outdoors should drink water frequently, wear lightweight clothing, and schedule strenuous activity during the morning or evening. Never leave children or pets inside parked vehicles, where temperatures can become dangerous within minutes.
Wednesday remains exceptionally hot with highs around 97 degrees, followed by another 90-degree afternoon Thursday before temperatures ease later in the week. Dry weather continues through Friday, with the next chance of showers arriving over the weekend.
Five-Day Forecast for Boston, Massachusetts
- Today: Sunny. High 89°F.
- Tonight: Mostly clear. Low 70°F.
- Tuesday: Mostly sunny and hot. High 98°F. Heat index up to 102°F.
- Tuesday Night: Mostly clear. Low 80°F.
- Wednesday: Mostly sunny and hot. High 97°F.
- Thursday: Sunny and hot. High 90°F.
