BBC Weather Centre - Country Guides: Norway: Provides climate and weather information, facts and statistics about the country, along with five-day forecasts for major cities.
Meteorological Institute: Forecast from the Norwegian Meteorological Institute and satellite pictures from Meteosat.
NOAA NWS - Norway Weather: US government site provides hour-by-hour weather conditions for the past 24 hours for major cities and locations in the country.
The Weather in Norway: Information about the weather in Norway; maps (forecasts), satellite images, and weather observations.
Weather Forecast by Intellicast.com: Weather forecast for the next several days. General weather, forecasted high and low temperatures, time of the sunrise and sunset, current temperature, weather/sky, humidity and wind. For Oslo, Norway.
Weather Underground - Norway: Displays current conditions for all major cities on one page, with five-day forecast and more detailed information for each available.
Weather.com - Norway: City-by-city weather reports and forecasts.
Yahoo! Weather: Norway: Current day weather and 5 day forecasts for several cities. Maps and images.