WMO World Forecasts
The National Hydrometeorological Services send regular information and forecasts for selected cities in their countries to https://worldweather.wmo.int. Thus you can find here first hand information.
The web site of World Weather Information Service (WWIS), sponsored by WMO, is developed and maintained by the Hong Kong Observatory (HKO) of Hong Kong, China.
This global web site presents OFFICIAL weather observations, weather forecasts and climatological information for selected cities supplied by NMHSs worldwide.
By March 2017, WWIS provided official weather information for 2123 cities in which 1997 cities are available with forecast from 135 members while 1961 cities are available with climatological information from 169 members.