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The heat advisory for most of Massachusetts has been extended through Wednesday. There's also a daily thunderstorm threat through Saturday.

The city of Boston on Tuesday issued a heat advisory amid this week’s stretch of dangerous heat and humidity that has gripped Southern New England, sending heat index values soaring into the 90s.The heat advisory will remain in effect from Tuesday through Friday,

Severe thunderstorm warnings were issued for parts of Maine and western Massachusetts on Tuesday afternoon, with more possible throughout the afternoon and evening in New England. See all severe thunderstorm warning in your area here.

The heat advisory will remain in effect from today through Friday, according to Mayor Michelle Wu’s office. The city threshold for a heat alert is three days or more of 90-degree h. “While this is not a heat emergency,

Mayor Michelle Wu has issued a heat advisory for Boston beginning Tuesday and continuing through Friday. The threshhold for a heat advisory is three days or more of 90 degree heat index or above sustained for two or more hours per day.