The weather observed at MADISON, WI (KMSN) at 10:53 PM CDT was: The skies were mostly clear. Temperature: 70F ( 21C) Dewpoint: 61F ( 16C) Relative Humidity: 73% Winds from the NW (300 degs) at 6 mph. Pressure: 1013.8 millibars. Altimeter:29.96 inches of mercury. The prevailing visibility was 10 miles.