Greetings, George. I think have this fixed. I found that I was not correctly translating city/country names that were retrieved from The Weather Channel. That should be fixed now. I uploaded a new version 1.4.5 of the eWeather Component. You can download that version here:
com_eweather_1.4.5.zip.
Please let me know if that fixes the problem you are seeing.
I also noticed that there is quite a bit of the Greek language file that needs translated. Mostly I saw that the moon phases ("Waning Crescent" for example) and weather descriptions ("Mostly cloudy" for example) are still in English. Would you be interested in translating some of those?
Thanks,
Bob