BBC Weather Centre - Country Guides: Peru Provides climate and weather information, facts and statistics about the country, along with five-day forecasts for major cities.
NOAA NWS - Peru Weather US government site provides hour-by-hour weather conditions for the past 24 hours for major cities and locations in the country.
Weather Underground - Peru Displays current conditions for all major cities on one page, with five-day forecast and more detailed information for each available.
