Wind & Rain Sensor: https://www.argentdata.com/catalog/index.php?cPath=29 https://www.argentdata.com/catalog/index.php?cPath=29 or https://www.sparkfun.com/prod

Wind & Rain Sensor: https://www.argentdata.com/catalog/index.php?cPath=29 https://www.argentdata.com/catalog/index.php?cPath=29 or https://www.sparkfun.com/products/8942 https://www.sparkfun.com/products/8942 ; related Arduino sketch: http://code.google.com/p/pweatherstation/ http://code.google.com/p/pweatherstation/ You want an RTC1307 real time clock, a humidity sensor and pressure & temperature sensor from Sparkfun/Adafruit/etc. e.g. https://www.sparkfun.com/products/11824 https://www.sparkfun.com/products/11824 . Good starting point on SF: https://www.sparkfun.com/categories/152 https://www.sparkfun.com/categories/152 Only buy sensors from vendors that provide you an up-to-date Arduino 1.2+ sketch for Uno/Mega or Due! I had to tune my sketch to fit it in Arduino Uno 32k memory (ethernet shield, various sensors code), so if it's your first project maybe use an Arduino Mega (more memory). Test every sketch on its own, then combine all sketches to one sketch. Cables are more reliable than wireless, especially if it should work years without maintenance. You can also use an RPi.