Unfortunately the weather all the time is not suitable for flight.
Good meteorological conditions are not the only factor required for the flight, but they are the crucial one. We need stable wind from the eastern direction in the afternoon, with just a slight change of angle to the north-east. The wind speed should be around 3-6 m/s. Moreover, there has to be no rainfall, which unfortunately appears in weather forecasts quite frequently now.
Still, when we finally manage to take off, it will be the most unusual of journeys and landscapes!
You can keep track of the weather conditions in Warsaw here http://www.meteo.pl