Sweltering heat happens every summer, but to get close to the bar of a state's all-time hottest temperature usually takes a heat wave that's on another level.

The peak average highs for many in the United States are hit in July or early August, but in some locations it's as early as June or as late as early fall.

The National Weather Service has warned of "searing heat and oppressive humidity that occurs during the 'dog days of summer'." ...

View the latest weather forecasts, maps, news and alerts on Yahoo Weather. Find local weather forecasts for Kilgore, United States throughout the world ...

This weekend into next week, an uptick in heat and humidity is headed for many regions. Maps show how hot and humid it will ...

With flooding in the headlines in recent days, we take a look at what each flood alert means, plus some recent flash flooding ...

A disturbance is expected to stall late this week of the southeastern coast of the United States ... between mid-August and mid-October, according to the Hurricane Center. Tropical cyclone is the ...

At least nine states along the East Coast faced summer swelter on Monday, and the steamy weather is expected to persist on Tuesday.

A system of low pressure could develop near Florida or off the southeastern coast of the U.S. over the Fourth of July weekend, or early next week.

As previous disasters have laid bare the US’ vulnerabilities to other types of extreme weather, this week is revealing strains in infrastructure and highlighting public health risks when faced ...

Barring an above-average monsoon season, Idaho's statewide water supply is expected to diminish rapidly this summer and into ...