NWS Boston/Norton MAXH.W 0001June 30, 2026
Extreme Heat Warning: Hartford, Tolland, Windham and 20 more, CT and MA
The National Weather Service office in Boston/Norton issued an extreme heat warning for Hartford, Tolland, Windham and 20 more in Connecticut, Massachusetts, Rhode Island, which was in force until 8:00 p.m. local time on July 4. It was the 1st extreme heat warning the NWS office in Boston/Norton issued in 2026.
ExpiredWarning
In force for 3 days; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Boston/Norton MA
- Area
- Hartford, Tolland, Windham and 20 more
- State
- Connecticut
- Level
- Warning
- Issued
- 1:38 a.m. EDT, June 30, 2026
- In force from
- 10:00 a.m. EDT, July 1, 2026
- Expires
- 8:00 p.m. EDT, July 4, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Expected
- VTEC event
- KBOX XH.W 0001
- Official source
- National Weather Service: the notice at its source
Every warning type in ConnecticutExtreme Heat Warning: what it means, and the states that get the most
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
* WHAT...Dangerously hot conditions with afternoon heat index values of 98 to 112 degrees expected Wednesday through Saturday afternoons. Currently...Thursday and Friday look to be the worst of the heat and humidity but regardless this will be a prolonged and dangerous heatwave. * WHERE...This extreme heat warning includes all of southern New England except the Berkshires and south coasts of Massachusetts and Rhode Island...where the watch extreme heat watch remains in place. * WHEN...From 10 AM Wednesday to 8 PM EDT Saturday. THe worst of the heat and humidity looks to be Thursday and Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...This will be a prolonged and dangerous heatwave with little relief at night! Low temperatures will only be dropping into the lower to middle 70s. In fact...the urban heat island of Boston will only see low temperatures drop into the upper 70s to near 80!
What the agency told people to do
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.