Blazing heat that has been baking the Deep South will expand across the Plains and Southwest the next several days. The upcoming hot spell will be a noticeable change for the Southwest deserts, where typical June heat has been absent most of the month.
The Deep South has been enduring oppressive heat recently underneath a dome of high pressure. That high will build to the north and west, encompassing the central Plains and Southwest for several days.
The number of places that will experience triple-digit heat over the nation's southern midsection will increase Monday into Tuesday. Wichita, Oklahoma City, Dallas, Tyler and Little Rock will all experience triple-digit heat on Tuesday.
High humidity will create even hotter AccuWeather.com RealFeel® temperatures across the nation's midsection. The Weather Summaries page explains how heat and humidity is a dangerous combination, and gives important heat-related safety tips that you should follow.
As is typical, humidity will not be as high across the Southwest. Temperatures will still soar into the 100s in the deserts most of this week. A high of 104° is normal this time of year in Phoenix. The city will warm to around that mark the next several days.
Saturday marked the first time in 15 days that temperatures in Phoenix reached the century mark. That unusual, but comfortable cool spell may be followed by blistering heat later this week. The potential exists for temperatures to soar to or past 110° starting Thursday.