The weather observed at MADISON, WI (KMSN) at 05:53 AM CST was: The skies were cloudy. Temperature: 27F ( -3C) Dewpoint: 23F ( -5C) Relative Humidity: 85% Winds were variable at 7 mph. Pressure: 1012.3 millibars. Altimeter:29.85 inches of mercury. The prevailing visibility was 8 miles. The maximum temperature in the past 6 hours was 27F. The minimum temperature in the past 6 hours was 23F.