Originally Posted by Seattle Forrest

​​​​​​For both of the features you mentioned to work, Garmin needs the temperature. They don't trust the thermometer in your computer for this, you could have it mounted next to a light that throws off heat, it could be in the sun or shade, etc. So these two features both require live temperature data from Garmin's weather service while you ride. Also both features have a cutoff temperature of 72 degrees F. The questions I asked were to help troubleshoot why this isn't working for you.