AOL Weather - Tonga: Provides current conditions and seven-day forecast for the country, along with weather headlines, local resources and outlooks for outdoor activities and travel.
BBC Weather Centre - Country Guides: Tonga: Provides climate and weather information, facts and statistics about the country.
NOAA NWS - Tonga Weather: US government site provides hour-by-hour weather conditions for the past 24 hours.
Weather Underground - Tonga: Displays current conditions for all major cities on one page, with five-day forecast and more detailed information for each available.
Yahoo! Weather - Tonga: Offers current conditions along with five-day and extended forecasts. From the Weather Channel.