Another Day With Heat Headlines!! But, they will expire at 8 pm. Monday marks the beginning of cooler temperatures and it really kicks in by Tuesday with relief from our oppressive and dangerous heat! A cold front is pushing slowly through Central Arkansas into Oklahoma and, by midnight, it will be pushing into SW Arkansas, SE Oklahoma, and NE Louisiana. During the day Monday, our cold front will continue southward through the remainder of the ArkLaTex with spotty showers and thunderstorms.