I use FA to check for the active runways in my area, and also to identify aircract that fly overhead, as we’re located 6 or 7mi out form 19L KIAD.
It would be good to display the ACTUVE Rwy on you airport weather pages, and include a history of the active. We have traveled to KDCA to take photos of Rwy1 departures based on the weather and flights, only to arrive and find the active was Rwy19. Not so bad, but the more weather info, the better.
Question… if you’re that close to KIAD, how about just calling the ATIS at the field? That should get you exactly what you’re looking for, plus any NOTAMs that any weather/METAR readout wouldn’t be able to show.