I created a Weather Bot for pump.io, which is currently running over at weather@hub.polari.us. It takes requests and responds with current weather conditions. It presently only accepts a message of the form: City,Region For instance: Uppsala,SE or Dallas,TX and looks up the weather from OpenWeatherMap.org. It replies to your request with the conditions. It is not stable. I have no mechanism for restarting it right now if it crashes. I will polish it up later. Meanwhile, give weather@hub.polari.us a spin!