The weather observed at BOSTON, MA (KBOS) at 11:54 AM EST was: The skies were mostly clear. Temperature: 52F ( 11C) Dewpoint: 34F ( 1C) Relative Humidity: 50% Winds from the NW (310 degs) at 16 mph. Pressure: 1020.2 millibars. Altimeter:30.13 inches of mercury. The prevailing visibility was 10 miles.