Extreme heat watches will go into effect Friday and continue for several days as an extended spell of hot weather grips ...

Add Yahoo as a preferred source to see more of our stories on Google. A prolonged stretch of dangerous heat is expected to continue across large portions of the southern United States into next week, ...

Add Yahoo as a preferred source to see more of our stories on Google. California is slated for an intense, potentially multi-pronged heat wave starting this weekend. (Jessica Christian/S.F. Chronicle) ...

Even after sunset, there will be little relief, as much of the South is expected to remain above 80 degrees for several nights in a row. Some Moderate High By Nazaneen Ghaffar Nazaneen Ghaffar is a ...