From the Southwest to the Plains to the Northeast, heat and severe storms mark the official start of summer.

Summer will make a dramatic entrance across America this week with a heat dome that will bring stifling temperatures and uncomfortable humidity to millions.

From the Southwest to the Plains to the Northeast, heat and severe storms mark the official start of summer.

Dangerous heat is settling in across over a dozen states, and it's only going to get hotter for many.

Just in time for summer, here comes the heat.