Egypt will witness a bout of unstable weather on Saturday, with rain falling in Cairo and across the country and a decrease in temperatures, Egypt's Meteorological Authority told state news agency MENA on Friday. Rain will fall across the country's northern coast; medium levels of rain are expected in the Nile Delta, while light rain is expected in Cairo. The whole country will see high winds, which will increase the feeling of cold temperatures and might disrupt navigation in the Mediterranean and Red Sea. Waves in the Mediterranean will reach possible highs of 3 to 3.5 metres, and the Red Sea waves will reach highs of 2.5 to 3 metres, the weather agency said. Temperatures will drop at night, causing frost in central Sinai as well as the northern parts of Upper Egypt. Cairo will witness highs of 17 degrees Celsius and lows of 9, while the coastal city of Alexandria will see highs of 16 and lows of 7. http://english.ahram.org.eg/News/185650.aspx