The weather observed at MADISON, WI (KMSN) at 10:53 PM CST was: The skies were mostly clear. Temperature: 45F ( 7C) Dewpoint: 16F ( -9C) Relative Humidity: 31% Winds from the NW (320 degs) at 10 mph. Pressure: 1008.8 millibars. Altimeter:29.79 inches of mercury. The prevailing visibility was 10 miles.