Comprehensive list from major U.S. and global research & operational centers

• Latest climate outlooks for the U.S.
  from the Climate Prediction Center
• Experimental products
  from the Climate Prediction Center
• Atlantic Ocean Hurricane outlook
  from the Climate Prediction Center
• Official monthly and 3-monthly temperature and precipitation outlook
  from Monthly outlooks at the Climate Prediction Center
• Official Seasonal Forecasts
  from the Climate Prediction Center
• US Seasonal Drought Outlook
  from the US Temperature, Precipitation, Hazards and Drought Outlooks website at the Climate Prediction Center
• US Seasonal Drought Monitor
  from the University of Nebraska-Lincoln
• Water Watch for the U.S.
  from USGS
• Fire Weather Outlooks for the U.S.
  from NOAA NWS Storm Prediction Center
• Drought monitoring and early warning for Africa and Europe
  from Environmental Analysis and Remote Sensing (EARS) in the Netherlands
• State-by-State Assessment of El Niño impacts on the U.S.
  from NOAA / National Weather Service / Climate Prediction Center
• Hazards Outlook for the U.S.
  from NOAA / National Weather Service
• Global Climate Forecast Maps for many countries
  from the International Research Institute
• Forecast charts - May require ECMWF userid and SecurID card
  from the European Centre for Medium-Range Weather Forecasts (ECMWF)
• Risk of Climate Extremes in the US Related to ENSO
  from the Climate Prediction Center (CPC) ENSO page
• 30-day forecast for US temperature and rainfall
  from the Two week lead outlook, at the Climate Prediction Center
• 90-day forecast for Hawaii
  from Climate Prediction Center
• Hurricane forecasts
  from the National Hurricane Center Also see Relationship between hurricanes/tropical cyclones and El Niño
• Hurricane Information
  from Ready.gov
• Supplemental Concensus Forecasts - Historial, no longer maintained
  from the IRI