With an early summer heat wave baking Michigan and the Midwest, residents may notice two temperatures provided with daily forecasts: actual and apparent — or "feels like" — temperatures based on the ...

The heat you feel outside is rising far faster than the temperature on the thermometer. New research from the University of ...

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 ...

The coldest and densest molecular gas clouds in the interstellar medium can have temperatures of 10 K (-505 °F/-263 °C), ...

Use your thermostat settings to save on energy bills. We've determined the best time of day to turn the heat on to save energy while still maintaining your comfort.

The heat index, or apparent temperature, combines air temperature and relative humidity to indicate how hot it feels. High humidity slows sweating, the body's natural cooling system, making ...