The weather observed at MADISON, WI (KMSN) at 01:53 AM CDT was: The skies were cloudy. Temperature: 52F ( 11C) Dewpoint: 45F ( 7C) Relative Humidity: 76% Winds from the S (180 degs) at 6 mph. Pressure: 1014.3 millibars. Altimeter:29.95 inches of mercury. The prevailing visibility was 10 miles. There was 0.00 inches of precipitation in the past 6 hours.