weather.openportguide.de puts weatherforecasts into graphs.

The following visualizations are availabe:

  • Weather tiles in mercator projection ready for overlay over "tiled web maps" or "slippy maps" like google maps or openstreetmap.
  • Meteograms showing a 10 day forecast for any position on earth.

An example with temperatures tiles above OSM tiles:

An example for a meteogram of London: