Heat Wave Hits Massachusetts: Temperatures Near 100 Degrees

Massachusetts faces an extreme heat event that will last from Wednesday morning until Saturday evening, with the highest temperatures expected on Thursday and Friday. During that span, most areas will see daytime highs between 97 and 103 degrees, while the heat index—what it feels like when humidity is added—could climb to 102–113 degrees in the interior valleys, especially around Springfield. Coastal spots such as Cape Cod will receive a heat advisory rather than an extreme warning, yet the danger remains high. Even on Independence Day, a cold front from the west will arrive but may not bring much relief; temperatures will stay hot and humid for most of the holiday. The front also offers a chance for thunderstorms, though forecasters warn that the conditions are not yet primed for severe weather. Overnight lows will be modest, dropping only to the mid‑70s in most regions and staying above 80 degrees in cities like Boston, offering little respite from the daytime heat.

Western Massachusetts may see a few scattered showers and weak thunderstorms later Wednesday, but the overall risk for severe weather remains low. The main threat is expected to stay northwest of the state, with a small possibility that isolated storms could become intense during late‑night or early‑morning hours. The worst organized thunderstorm activity is likely to appear only after Friday’s cold front arrives. Historical records highlight how unusual this heat wave is. Boston’s July 4 record high of 104 degrees dates back to 1911, and Worcester recorded a July 5 minimum of 73 degrees in 1999—both rare extremes. Residents planning outdoor activities, especially on the Fourth of July, should stay hydrated, use air‑conditioned spaces during peak heat, and look out for vulnerable neighbors.

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