Mayor Michelle Wu declared a heat emergency for Boston from Wednesday through Friday, with the heat index predicted to ...

Meteorologist Jill Gilardi said the heat index on Wednesday afternoon was between 95 and 100 degrees. Here's her Wednesday noon forecast.

Air quality levels are expected to exceed 100 on the Air Quality Index, signaling elevated levels of ground-level ozone. This ...

New York City and much of the area are under a heat advisory Wednesday and Thursday, with feels-like temperatures in triple digits. CBS News New York's Allen Devlin reports.

The National Weather Service is warning of hazardous heat conditions on Thursday in eastern and southeastern Pennsylvania, as well as parts of New Jersey. The agency issued a heat advisory that ...

The National Weather Service issued a heat advisory at 1:55 a.m. on Wednesday valid for Thursday between 10 a.m. and 8 p.m.

The heat advisory came into effect just before the opening of Capitol Lakefair today at Heritage Park in Olympia. However, ...

The advisory is set to go into effect at noon and remain until 8 p.m. The advisory area covers portions of central, eastern, north central, southern, southern and southwest Arkansas, including Little ...

The National Weather Service has issued a heat advisory for much of the state for Wednesday afternoon. Actual temperatures ...

The National Weather Service heat advisory includes the cities of Niagara Falls, Medina, Rochester, Newark, Fair Haven, ...

Meteorologist Ava Marie says it will be another hot and humid day, with scattered heavy thunderstorms this evening.