Thunderstorms with isolated tornadoes and steamy dangerous heat possible in Florida ahead of and during Mother's Day weekend.

Philadelphia's streak of hot weather continues Tuesday as our fifth heat wave of the summer gets underway. On Tuesday, the heat turns up even more with high temperatures across the region likely ...

A strong warming trend will send temperatures soaring across the western U.S., with some areas nearing or topping 100 degrees ...

Hotter temperatures and higher electricity bills could prove dangerous and even fatal this summer, warns a new forecast from ...

Las Vegas is chasing record highs this week, although no heat alerts have been set quite yet.