The weather observed at MADISON, WI (KMSN) at 05:53 PM CDT was: The skies were mostly clear. Temperature: 91F ( 33C) Dewpoint: 73F ( 23C) Relative Humidity: 56% Winds from the SW (210 degs) at 14 mph. Pressure: 1004.9 millibars. Altimeter:29.70 inches of mercury. The prevailing visibility was 10 miles.