6:19 P.M. UPDATE: The flash flood watch across the region has been canceled. Rainfall topped an inch downtown, and neared it at BWI Airport, but the heaviest rain fall south and southwest of Baltimore.
Some rainfall totals around the region, according to the National Weather Service:
Inner Harbor: 1.02 inches
Eastport: 1.49 inches
Davidsonville: 2.06 inches
Camp Springs: 2.55 inches
Washington, D.C.: 1.53 inches
Reagan National Airport: 1.33 inches
Warrenton, Va.: 4.99 inches
West Springfield, Va.: 5 inches
The Rixeyville area of Virginia led the region, with 6.31 inches in one spot.
ORIGINAL POST, 3:24 P.M.: A flash flood watch is in effect through Friday in the Baltimore region, south from Anne Arundel County through the city and into Harford County, according to the National Weather Service.
High temperatures are expected in the upper 70s, with the morning rain likely to continue as scattered thunderstorms move through the region.
Since late Thursday, just more than half an inch of rain had fallen at Baltimore-Washington International Thurgood Marshall Airport by 3 p.m., while 0.76 inches had fallen at the Inner Harbor.
Humidity is only slightly lower than past days, in the upper 60s, a level that feels a bit more comfortable than the dew points in the 70s of the past several days but still plenty moist with all the rain.
Saturday and Sunday could bring more shower chances and highs in the upper 80s, with humidity increasing slightly.
Drier weather is forecast to start next week, with highs in the upper 80s and humidity returning with dew points close to 70 degrees.