Weather Underground - Nigeria
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/NI.html
NOAA NWS - Nigeria 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/NG_cc.html
World Weather Information Service - Nigeria
UN weather agency's month-by-month temperature and precipitation information for cities in Nigeria.
http://www.worldweather.org/075/m075.htm