Earlier this year PASCO released a new Wireless Weather Sensor. It collects temperature, humidity, UV, wind, and more. The sensor also has a GPS! The folks at PASCO then embedded ArcGIS into their SPARKvue software that manages the sensors and allows for data analysis and visualization. Of course you can always export your data and load into a map at ArcGIS.com.
The all-in-one instrument can record up to 17 different measurements individually or simultaneously! Use the sensor in logging mode with the optional Weather Vane Accessory for long-term monitoring, or use it as a hand-held instrument to study microclimates and record ambient conditions relevant to many biological and environmental phenomena.