 For the west, extreme heat remains in place as high pressure continues to sit over the southwest, bringing more dangerous, potentially record-threatening heat from California and Arizona and Utah and even parts of Idaho and Montana through today. This high pressure will start to make its way more toward the east as the weekend wears on, bringing highs over the century mark to more of the northern and southern plains. These temperatures should reach parts of the southeast by Saturday, but some areas of California may have the heat begin to relax by then.