The weather observed at MADISON, WI (KMSN) at 08:53 PM CDT was: The skies were mostly cloudy. Temperature: 75F ( 24C) Dewpoint: 61F ( 16C) Relative Humidity: 61% Winds were calm. Pressure: 1016.8 millibars. Altimeter:30.04 inches of mercury. The prevailing visibility was 10 miles.