SHREVEPORT, La. (KSLA) – Summer officially begins this week and it will certainly feel like it across the ArkLaTex with plenty of heat & humidity on the way!. Tropical moisture will continue to flow north off the Gulf of Mexico this evening creating very muggy conditions. A few storms can’t be ruled out but anything that does develop should quickly fade away once the sun sets. Overnight lows will remain in the low to mid 70s.