Heat waves are becoming commonplace, and so too is high humidity, which can strain the electrical grid, hurt the economy, and ...

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 ...

More haze and humidity is expected to come around the islands as rain dies down a bit. The forecast for tomorrow and the ...