The last time Dallas didn’t have a daytime high of 100 degrees or above was July 1. On that day it reported 98. Weather editor Justin Roberti, of AccuWeather. com, extrapolated some data and predicts the widespread searing heat stifling two-thirds of the country since July is shrinking.

The big heat bubble that exploded from the southern Plains at the start of summer, is shrinking into the south-central sections of the country. The expected relief may only be experienced from Nebraska to New Jersey and points north.

An Entergy news release said 2.7 million customers in Louisiana, Arkansas, Mississippi and Texas set record levels of electrical demand this week. Entergy.com has some ideas to reduce your consumption and your bill.

Fastcast: Heat advisory.

Sunny and hot, with a high near 97. Heat index values as high as 109. Calm winds becoming southwesterly at 5 mph. Tonight: Mostly clear, low around 79. Southerly winds 5 mph.