3 steps for maximum forecast accuracy::
Clear sky
Broken clouds
Scattered clouds
Armenia
Argentina
Austria
Australia
Azerbaijan
Belgium
Bulgaria
Brazil
The Bahamas
Belarus
Switzerland
Cyprus
Czech Republic
Denmark
Estonia
Egypt
Spain
Finland
France
United Kingdom
Georgia (country)
Greece
Croatia
Hungary
Indonesia
Republic of Ireland
Israel
India
Italy
Jordan
Japan
Kazakhstan
Lithuania
Latvia
Morocco
Nepal
Poland
Russia
Sweden
Slovenia
Slovakia
Thailand
Tunisia
Turkey
Ukraine