Whether a summer day is great or awful often comes down to the humidity.

Across much of the world, hotter days are no longer arriving alone. The air itself is changing, sometimes turning from dry oven to steam bath, other times drying out even as thermometers climb. As ...

Trey Fulbright is the newest meteorologist on the KDKA First Alert Weather Team. In addition to seeing his forecasts on air, he also does weather and climate reporting. Trey comes to KDKA from Des ...

These maps show different regions of the world overlaid with a range of heat stress data over the long term, between 1980 and 2019. (a) shows air temperature, (b) shows specific humidity, (c) shows ...

Meteorologist Ray Petelin joined the KDKA Weather Team in October 2018, but is no stranger to the weather in Pittsburgh and Western Pennsylvania. He has been forecasting in Pittsburgh since 2011 and ...

Has Sydney felt more like Cairns lately? You’re not imagining it – millions of Australians up and down the east coast have sweltered through exceptionally high humidity in recent weeks. It’s due to ...

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 ...