A sweltering heat wave is bearing down on the United States, threatening to make the upcoming July Fourth celebrations a scorcher for millions of Americans. Forecasters predict a prolonged period of extreme heat and humidity, with temperatures soaring into the triple digits in many parts of the country. From the southern Plains to the Midwest and East Coast, residents are bracing for a heat wave that could bring life-threatening conditions, especially for vulnerable populations such as the elderly and young children. As the nation prepares to mark its independence, many are wondering how they'll stay cool and safe in the face of this potentially deadly heat wave.
Dangerous heat wave to scorch U.S. ahead of July Fourth NBC News
