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Boston, MA Warnings, Watches and Advisories

Excessive Heat Warning

Excessive Heat Warning issued July 20 at 3:35AM EDT until July 21 at 8:00PM EDT by NWS

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT SUNDAY... * HEAT INDEX VALUES...Up to 109 due to temperatures in the upper 90s, and dewpoints in the lower 70s. * TIMING...Dangerous heat and humidity through the weekend. The worst of the heat will be from late in the morning through the

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