Record-breaking heat dome expected to bring dangerous temperatures to US south-west

As wildfires rage and intense heat builds across the region, daytime highs of 110-11F (43-46C) are forecast Surging temperatures are expected to broil more than 45 million people as a heat dome settles in across the south-western US through the end of August and into early September, according to the National Weather S

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.