BBC Weather Centre: Belfast

Current observations plus five-day forecast.

http://www.bbc.co.uk/weather/5day.shtml?world=1&links

Online Weather: Belfast

Five-day weather forecast for the city with temperatures, sun-rise and sun-set
times, wind speed and direction.

http://www.onlineweather.com/v4/uk/city/Belfast.html

The Weather Channel: Belfast

Today's details, plus 10-day forecast and satellite map with Doppler.

http://uk.weather.com/weather/local/UKXX0015