More than 150 million Americans are under the highest-level extreme heat alerts during a wave of above-average temperatures.

Mostly clear and warm through the night and into Saturday morning. Lows will be near 70, with highs reaching the lower 90s by ...

Temperatures are expected to soar to the mid-90s this weekend and potentially move close to 100 next week. The humidity will ...

Our first heatwave of the year is here. Temperatures in the 90s, heat indices in the 100s. We're tracking rising rain chances ...