Some parts of the U.S., such as Phoenix, Arizona, are famously hot without the mugginess. Phoenix and nearby desert regions ...

As temperatures rise across the U.S., here’s what you need to know about high humidity and how it can affect you.

Can you imagine running around the same track- over and over- for ten days straight? That's exactly what's happening at the ...

High heat clamped down on Tuesday across the eastern United States once again, with more than 75 million Americans between ...

A powerful heat dome is trapping scorching air and humidity across the Eastern U.S., bringing life‑threatening conditions ...

Extensive triple digit heat, broken temperature records and oppressive humidity piled up into a steaming mess as the heat ...

Extensive triple digit heat, broken temperature records and oppressive humidity piled up into a steaming mess as the heat dome crushing the Eastern half of the nation sizzled to what should be its ...

Australian scientists have started analysing the first batch of samples from the 'Million Year Ice Core' project.

As temperatures approached the high 90’s on Monday, Washington area residents braced for a few days under a “heat dome” that has engulfed a large swath of the country.

Toronto’s current heat record for June 23 is 32.8 C and it was set in 1983, Coulson said. The daytime high in the city on ...