Boston

Boston Set to Sizzle with Mid-90s Temperatures and High Humidity Relief Expected by Weekend

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Published on August 11, 2025
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Bostonians, brace yourselves for a steamy week ahead, as the National Weather Service forecasts hot and sunny days with temperatures soaring nearly to the mid-90s. Today, the city can expect a balmy high near 93 degrees, with a slight southeast breeze in the afternoon. It's not just the heat—humidity is also on the climb, with dew points entering the sticky 60s territory, according to the NWS.

The warmth won't let up as Tuesday and Wednesday promise more of the same: relentless sun and climbing temperatures, with Wednesday pegged as the week's zenith of this simmering spell. Despite dew points creeping up, the air won't reach the unbearable, just a notch below heat advisory levels, which have been issued in nearby southern New Hampshire, NBC Boston reports. Evenings will offer little respite, with lows hovering in the low 70s.

A streak of dry days will persist through most of the period, leaving outdoor plans largely uninterrupted by rainfall. However, the forecast suggests a slight chance of showers and thunderstorms come mid-week. Wednesday night, especially, could see some activity with a 30% chance of precipitation darkening the otherwise starry skies.

Relief is on the horizon, though, with a cold front expected to roll in by Thursday evening, introducing a possibility for scattered showers and thunderstorms, along with a dip in temperatures. This change will usher in cooler, more tolerable conditions. By Friday, as the front clears the region, Boston will welcome drier air and more comfortable weather, dropping highs back into the enviable low 80s, just in time for the weekend, per NBC Boston.

Boston-Weather & Environment