While the air temperature tells us how cold the air actually is, wind chill explains why it can feel much colder on a windy day.

Wind chills as low as 30 degrees below zero are in the forecast for parts of New England and the interior Northeast.

Each week, our meteorologists answer a question from readers.

Wind chills below zero were expected to persist across parts of the Northeast and New England on Monday but should finally ...

The concept dates back to the 1940s, when Antarctic explorers were trying to understand why exposed skin froze so quickly in harsh conditions.