I would like to share with you my contribution to the world of ESP8266.
I made a weather station with the ESP8266.
Here is the diagram of the assembly:
I use the mechanical parts of a WMR200 weather station.
And as thermometer, hygrometer and barometer the BME280.
The system is fully autonomous and operates on batteries and solar panel.
More information and photos on my website: http://chynehome.com/web/station-meteo-a-base-de-esp8266-2/
Librairies and Sketch here: http://chynehome.com/web/wp-content/uploads/2015/10/Personal_Weather_Sation_ESP8266_V2.zip