The weather observed at MADISON, WI (KMSN) at 04:53 PM CST was: The skies were mostly clear. Temperature: 23F ( -5C) Dewpoint: 16F ( -9C) Relative Humidity: 74% Winds from the NW (310 degs) at 7 mph. Pressure: 1015.0 millibars. Altimeter:29.94 inches of mercury. The prevailing visibility was 10 miles.