The weather observed at WASHINGTON DC, VA (KDCA) at 05:52 PM EDT was: The skies were mostly cloudy. Temperature: 90F ( 32C) Dewpoint: 66F ( 19C) Relative Humidity: 46% Winds from the W (260 degs) at 13 mph. Pressure: 999.0 millibars. Altimeter:29.50 inches of mercury. The prevailing visibility was 10 miles. There has been 0.00 inches of precipitation in the past hour.