Surface observations

Data from the National Weather Service, made available here by the UAlbany Department of Earth and Atmospheric Sciences

The weather observed at WASHINGTON DC, VA (KDCA) at 09:52 AM EDT was:
  The skies were mostly cloudy.
  Temperature: 82F ( 28C)  Dewpoint:  61F ( 16C)  Relative Humidity:  48%
  Winds from the NW (300 degs) at 22 mph.
  Pressure: 1004.0 millibars.  Altimeter:29.65 inches of mercury.
  The prevailing visibility was 10 miles.