Weather Underground: Derby, Iowa - Active advisories, if any. Current conditions, five-day forecast, local radar and satellite. - http://www.wunderground.com/cgi-bin/findweather/getForecast?query=derby%2C+iowa
City-Data.com: Derby, Iowa - Profiles housing, population demographics, jobs, weather and climate tables. Contains a list of area hospitals, schools, airports, radio and TV broadcast stations, charts and maps. - http://www.city-data.com/city/Derby-Iowa.html
Wikipedia: Derby, Iowa - Encyclopedia article covers geography and demographics of this community in Lucas County. - http://en.wikipedia.org/wiki/Derby,_Iowa