The weather observed at MADISON, WI (KMSN) at 01:53 PM CST was: The skies were clear. Temperature: 10F (-12C) Dewpoint: -8F (-22C) Relative Humidity: 43% Winds from the WNW(290 degs) at 16 mph. Pressure: 1022.7 millibars. Altimeter:30.14 inches of mercury. The prevailing visibility was 10 miles.