The weather observed at MADISON, WI (KMSN) at 09:53 AM CST was: The skies were cloudy. The weather reported was fog. Temperature: 46F ( 8C) Dewpoint: 43F ( 6C) Relative Humidity: 87% Winds from the ESE(110 degs) at 9 mph. Pressure: 1017.1 millibars. Altimeter:30.02 inches of mercury. The prevailing visibility was 2 miles.