A heat wave is building in Reno and northeast California. Highs may reach 104 by Monday in Reno, with smoke and haze also expected from wildfires.

Forecasters warn areas stretching from Southwest Washington to the central Willamette Valley could see dangerously hot conditions on Tuesday with temperatures possibly reaching 105 degrees Fahrenheit.

As the heat index pushed 105 degrees Fahrenheit one weekend in late June, my toddler and I were on foot, searching for a cool oasis. We found one in the wide, pale shadow cast by a 26-story apartment ...

Forecasters warn of dangerously high temperatures, with the mercury expected to climb into the range of 95 to 105 degrees Fahrenheit. The National Weather Service and local health officials ...

Temperatures are forecasted to reach 105 degrees Fahrenheit Tuesday — nearly 12 degrees warmer than average.

Some parts of Western Europe were starting to cool off as the extreme heat that has gripped the continent moved east.

In Louisiana, the average temperature during the summer is 90 degrees Fahrenheit or more, with highs reaching up to 105 degrees. When you're home during the summer, turning your air conditioner to ...