I have three weather websites up on my computer. One is a link to the actual weather instruments at the local sewage processing plant (which seems to be a good place to have a weather station -- no-one in their right mind is going to interfere with them there). It says 1 deg C, the google weather service says 2 deg, the Weatherzone site says 6.7 deg, and my outdoor shaded thermometer says 2 deg.