When Floridians talk about extreme weather, hurricanes dominate the conversation. Each season brings updates on storm tracks, ...

Naser Daher, of Durham’s Old Farm neighborhood, carries his belongings through floodwaters near the Eno River in Durham on ...

Across much of the world, hotter days are no longer arriving alone. The air itself is changing, sometimes turning from dry ...

An outbreak of botulism tied to ByHeart baby formula has made at least 15 infants sick in 12 states, a California health official said Monday. The company announced Tuesday that it is expanding its ...

Relative humidity measures how much moisture is in the air compared to how much it could hold at a given temperature. It is simply the dew point temperature divided by the air temperature, times 100.

If you think this summer has felt extra sticky and sweltering hot in Ohio and Kentucky, you're not alone. Greater Cincinnati has spent much of the summer trying to stay cool, as the area has been ...

NORFOLK, Va. — Most summer days, you hear us talk about “humidity” when describing how the air feels. While many people are familiar with the term relative humidity — the percentage of water vapor in ...

Extreme heat can be hard on your heart. As temperatures rise, the heart pumps faster to move blood toward the skin to cool the body. This added strain on the cardiovascular system can increase the ...

The drier air continues its steady march southward across Michigan. Here’s when you can breathe a sigh of humidity relief. We will continue to peg the more comfortable air to the dew point temperature ...

Metro Denver was smacked with unusual high humidity Tuesday morning. 9News Senior Meteorologist Chris Bianchi posted on social media around 6:30 a.m. that the dew point in the Mile High City was 66 ...

IOWA, USA — When encountering sweltering summer conditions, many Iowans will quickly defer to the infamous quote, "It's not the heat, it's the humidity." But what contributes to Iowa being so much ...