The weather observed at MADISON, WI (KMSN) at 05:53 PM CDT was: The skies were partly cloudy. Temperature: 63F ( 17C) Dewpoint: 56F ( 13C) Relative Humidity: 78% Winds were calm. Pressure: 1020.1 millibars. Altimeter:30.13 inches of mercury. The prevailing visibility was 10 miles.