A Bermuda high parked over the western Atlantic is pulling sweltering air up from the south, challenging records in parts of ...

During the hot, humid summer months, meteorologists often discuss the heat index instead of the actual air temperature. But how is the heat index calculated, and why is it more important than the air ...

Authorities in Britain and France warned that “unprecedented” temperatures — at a time when few expected them — could persist ...

Across the United States and around the world, extreme heat events are becoming more frequent, more intense and longer ...

A brutal heat wave across the eastern United States trapped millions of people in sweltering air this week with record-high temperatures. A cold front brought cooler weather to the Northeast on ...

Living in Morocco’s High Atlas mountains and having completed the brutally challenging Marathon des Sables, Alice Morrison ...

Temperatures this week are some of the hottest we have seen the entire year now as we get to the end of July. This is a perfect opportunity to explain what the Heat Index is and how it is all ...

Heat index, which increases as air temperature and humidity increase, is important when considering heat safety in ...

The heat index is a measure of how hot it really feels on your body when relative humidity is factored in with the actual air temperature. Since heat index values were devised for shady, light wind ...

It's about to get very hot across a large swath of Canada. The first long stretch of heat is expected across southern Alberta ...

Summer is here, and that means the desert heat is here too. If you're looking for ways to beat the heat, ABC4.com has you ...