Extreme heat is impacting states across the country. See maps of high temperature forecasts and heat index levels.

A heat wave is blanketing Delaware today and will last several days. When is relief on the way? Here's the latest forecast.

The heat wave is coming, Delaware! Here's the latest forecast, from when the 'dangerous' heat is heading in to how hot it'll feel.

Soaring temperatures this week has cut power for thousands around Ohio. These maps can tell you how widespread an outage is and when power will return.

Many states will experience temperatures that feel in the triple digits on Thursday, forecasters say.

Forecasters reckon temperatures are poised to rocket in sizzling Stoke-on-Trent - as a heat-health alert has been issued. It comes as meteorologists believe it could reach around 29C in the ...

UK storm alert as maps show exact time lightning and heavy rain to smash 34C heat bomb Millions of Brits could see a damp start to next week after temperatures are set to rise during the weekend.

A brutal heat wave across the eastern United States trapped millions of people in sweltering air this week with record-high temperatures.

Much of the UK is set to bake once again in hot weather as temperatures soar to as high as 29C this coming weekend. Weather maps show the 34 hottest counties.

Weather map: Temperatures could soar to 35C as Britons swelter in heatwave Temperatures could reach 35C on Tuesday as the heatwave reaches its peak Jabed Ahmed, Tara Cobham, Bryony Gooch ...

Scientists compare current theories to explain the behaviour of heat flow in nanoscale materials, extremely important for the improvement of electronic devices.