Dallas-Fort Worth could see a slight chance of rain Monday, with a 20 percent chance of showers and thunderstorms possible mainly after 1 p.m. High temperatures are expected to reach 95 degrees, with heat index values as high as 102. The National Weather Service’s Fort Worth office also issued an air quality alert for Dallas-Fort Worth that lasts through Monday. Temperatures are expected to drop into the mid-70s after dark, and a 5 to 10 miles per hour wind is expected throughout the day. North Texas could be in for a stormy week, with chances of rain ranging from 30 percent to 80 percent until Sunday. Monday’s forecast calls for sun, clouds, breezy conditions and a high of 95. Tuesday brings increasing clouds, a 20 percent chance of showers or thunderstorms, and increasing rain chances by Tuesday night. Wednesday, Thursday and Friday stay mostly cloudy or variably cloudy, with showers and thunderstorms and highs from 88 to 82.