DWD Deutscher Wetterdienst. German federal meterological service. Information about services, weather and climate, the service itself and its infrastructure. http://www.dwd.de/
NOAA NWS - Germany Weather US government site provides hour-by-hour weather conditions for the past 24 hours for major cities and locations in the country. http://weather.noaa.gov/weather/DE_cc.html
Weather Underground - Germany Displays current conditions for all major cities on one page, with five-day forecast and more detailed information for each available. http://www.wunderground.com/global/DL.html