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Wunderground is the Internet's 1st weather service and it organizes a worldwide network of personal weather station operators.  It utilizes proprietary software technology to verify the validity and accuracy of the readings from its members.  Local weather observations are then used to generate neighborhood-level local forecasts.


TorontoForecast.com is one of the first registered member from Toronto and its official station code is IONTORON16.  Observations, such as UV index and solar radiation, are sent to its server every 2 seconds using the RapidFire update technology. 

  • National Centers for Environmental Prediction/Hydrometeorological Prediction Center
  • Wunderground.com
  • The Weather Channel
  • Accuweather.com
  • Intellicast.com

The Community Collaborative Rain, Hail and Snow Network (CoCoRaHS) is a unique, non-profit, community-based network of volunteers to measure and map precipitation (rain, hail and snow).  It provides professional grade precipitation gauge and standard training materials to its members.  The major sponsors are the National Oceanic and Atmospheric Administration (NOAA) and the National Science Foundation (NSF)


TorontoForecast.com is the first registered member from Toronto and its official station code is CAN-ON-19. Precipitation readings, such as total melted snow and rainfall, are submitted every morning around 0700.

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As we curate the story of Toronto weather, we rely on publicly available information for weather data such as systems map, local observations and forecast models.  Here is a list of reliable weather sources:

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Agencies

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  • Environment Canada
  • National Oceanic and Atmospheric Administration
  • Center for Ocean-Land-Atmosphere Studies
  • National Weather Service
  • Unisys Weather

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The weather information, data and documentation are provided "as is" and without warranty or technical support of any kind from Torontoforecast.com to the maximum extent permitted by applicable law.  Torontoforecast.com and its affiliates expressly disclaim any and all representations and warranties, express or implied, arising by law or otherwise, regarding the weather information, data, documentation or any other products and services, including without limitation any express or implied warranty of merchantability, express or implied warranty of fitness for a particular purpose, non-infringement, quality, accuracy, completeness, effectiveness, reliability, usefulness, that the weather information, data or documentation will be error-free, or implied warranties arising from course of dealing or course of performance.  Without limiting the foregoing, it is further understood that TorontoForecast.com and its providers are not responsible for your use or misuse of the weather information, data or documentation or the results from such use.  TorontoForecast.com and its providers make no express or implied warranties, guarantees or affirmations that weather information will occur or has occurred as the reports, forecasts, data, or information state, represent or depict and it shall have no responsibility or liability whatsoever to any person or entity, parties and non-parties alike, for any inconsistency, inaccuracy, or omission for weather or events predicted or depicted, reported, occurring or occurred.  You acknowledge that you will use common sense and follow standard safety precautions in connection with the use of the weather information, data or documentation. 

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The Citizen Weather Observer Program (CWOP) is a public-private partnership with over 7000 stations from volunteer citizens.  The weather data is checked for data quality and it is sent to the NOAA MADIS server.   There are over 800 different organizations, such as the US NWS Weather Forecast Offices, National Center for Atmospheric Research and the University Corporation for Atmospheric Research, using CWOP mesonet data.


TorontoForecast.com is a registered member and its official station code is D0132.  The MADIS rating for quality assurance is available in its station profile and daily weather observations are sent to various organizations such as NWS NOAA and MesoWest Utah


The mission of TorontoForecast.com is to curate the story of the local weather in Toronto.


Explore the pages to learn about the climate, daily weather and stories that shape the city of Toronto.


This is your weather portal so feel free to contact us at weatherlink@torontoforecast.com for collaboration, new features ideas and local weather stories you would like to highlight.


Since 2008, TorontoForecast.com  has been providing  valuable weather data to volunteer weather organizations, media outlets and government weather agencies.  Its physical location is at Toronto East York (Leaside) near Sunnybrook Park.  The weather readings are gathered using professional grade instruments - Davis Vantage Pro2 Plus w/ Fan-Aspirated Radiation Shield and CoCoRaHS 4" Rain and Snow Gauge.

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