DIGOO DG-EX003 Color Screen Weather Station with Outdoor Sensor US $12.42 (~AU $18.70) Shipped @ Banggood
Good price on a colour screen weather station with outdoor sensor(can add up to 3). I have a few Digoo weather stations and find the temperature readings fairly accurate.
The main unit can be powered by USB with supplied cable or AA batteries.
Priority shipping is only US $0.20 extra and don't forget to remove shipping insurance.