the star-studded line up included justin bieber, furel, and mily cyrus. our coverage of the terror in london continues in our next half-hour including an intense exchange between the mayor of london and president trump. plus nbc's lauren make hears from those just returning to philadelphia. >>> the first alert radar tracking a chance of showers in some neighborhoods into the morning. we're joined now with the most accurate forecast. glenn. >> yeah, denise, and that may be the beginning of a pretty wet period. that flag is blowing pretty hard. that's a soushlly blowing in. it kept things cool on the jersey shore today, and it kept the moisture in. and we've got some heavier rain right now right over allantown and into eastten. that's not going to be lasting all night but just an indication some parts are going to be getting more rain. in the morning rush, the rain may be over in allen town but just starting in the philadelphia area and still not raining to the south. so things are going to be kind of variable during the day. but the general trend is for we