Write current weather to channel as it gets sensor information

I have 4 Particle sensors that send the indoor temperature sensor to a ThingSpeak. When this happens I would also like to add what the current outside temperature is( from current location) when ThingSpeak is receiving the sensor information. Any suggestions has to how to do this?

Thanks.

David

[Hans Scharler]

You could trigger a MATLAB Analytic to run when data gets updated on ThingSpeak. The MATLAB script could read data from the ThingSpeak channel and look up weather data from weather.gov, then use thingSpeakWrite to write all the values to a new channel.