Flash flood warnings are still in effect for some parts of Maryland Friday night.
A flash flood warning for St. Mary's, Calvert and Charles counties in Maryland until 11:30 p.m.
A separate flash flood warning for Washington, D.C., parts of Montgomery and Prince George's counties in Maryland and parts of Arlington and Fairfax counties in Northern Virginia has expired.
Never try to drive a car through a flooded area. Officials urge people in affected areas to stay inside to avoid falling trees and branches as wind gusts could reach 60 mph. Hail and lightning are also possible.
A heat advisory was also in effect Friday from 11 a.m. to 8 p.m. The heat index in Washington, D.C. hit 108 degrees Friday afternoon. Throughout the region, temperatures will feel higher than 100 degrees.
High temperatures and humidity throughout the day contributed to the storms tonight.
On Saturday, expect lower humidity, partial sunshine and a high of 89 degrees. Sunday should be mostly sunny, with highs in the upper 80s, News4 Meteorologist Amelia Draper says.