A new script, using the ForeCast.io embed URL - http://blog.forecast.io/forecast-embeds/
Pass in your coordinates from http://itouchmap.com/latlong.html, the name you want and whether you want it LIGHT or DARK.
So, create a script geeklet to run something like this, depending on where you store the script:
/Users/myuser/Documents/GeekWeather2/geekWeather2.sh 40.410259 -74.035055 "Atlantic Highlands" LIGHT
This will then run the script, and create the image.
Then, create an image one pointing to:
Or, use this one by djparadyme, which is pretty neat, and has more options: