Forecast for Unknown Site (74.292 W 40.553 N)
The forecasts are plotted following the universal meteorological guidelines (users might read Wikipedia article at https://en.wikipedia.org/wiki/Station_model for a quick look of such guidelines).
For more details, please refer to the Wiki.
Application Programming Interface (API)
The graphical API will display the forecast diagram as seen at the 7Timer! website, this is useful for website makers who wish to include the forecast diagram in their websites. The graphical API address for this location would be
The graphical API, when properly called, will return a PNG-type image, so you may use <img> tag to include the forecast diagrams in your website.
A brief explanation of the parameters is given below:
lon, lat – Geographic coordinates of the specified site.
A successful call of the API will return sets of values. For exact meaning of these values, please refer to the Wiki.
Term of Use
You may use these data freely as long as the purpose is noncomercial. Program developers are asked to notify me when using the service so I can track the server workload. Please remember that weather forecast is one of the most highly challenging problems in our times, so using these data is at your own risk.
If you have already know the geographic coordinates of a location, you may enter them to get forecast. Coordinates must be input as "dd.ddd/-dd.ddd", like "113.190,23.094 or -113.190,-23.094", with precision up to 0.001.
7Timer! thanks Xasteria for iOS for their generous support.