The weather observed at BOSTON, MA (KBOS) at 11:54 PM EDT was: The skies were partly cloudy. Temperature: 76F ( 24C) Dewpoint: 61F ( 16C) Relative Humidity: 60% Winds from the W (270 degs) at 9 mph. Pressure: 1008.9 millibars. Altimeter:29.80 inches of mercury. The prevailing visibility was 10 miles.