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.
Weather Forecast by Intellicast.com - Weather forecast for the next several days. General weather, forecast high and low temperatures, time of the sunrise and sunset, current temperature, weather/sky, humidity and wind. For Oslo, Norway.
The Weather in Norway - Information about the weather in Norway; maps (forecasts), satellite images, and weather observations.
Weather Underground - Norway - Displays current conditions for all major cities on one page, with five-day forecast and more detailed information for each available.