keys for the yaxis and the time for the xaxis.
	air_pressure_at_sea_level, air_temperature, precipitation_amount
	
	File located in ~domoticz/www/templates/weather_forecast_data.json.
	{"result" : [
	{"air_pressure_at_sea_level":1013.5,"air_temperature":17.8,"precipitation_amount":0.9,"probability_of_precipitation":0,"time":"26-11 12:00","wind_speed":10.4},
	{"air_pressure_at_sea_level":1011.2,"air_temperature":16.2,"precipitation_amount":0.4,"probability_of_precipitation":0,"time":"26-11 18:00","wind