 And a severe thunderstorm moving through the Frederick, Maryland area. Let's get more from 7 News First Alert meteorologist Mark Pena with what's going to be happening tonight and tomorrow. Temperatures falling into the mid-70s with some showers and storms possible through about midnight and mainly along and north of I-66. After that, temperatures to start your Sunday will be rather mild. And we'll see another hot and steamy afternoon on your Sunday with highs back in the mid-90s with heat index values making it feel anywhere from around 100 to 105.