Meteorologists warned against dense mist that may reach the level of fog.
On Friday fog will be present on the roads leading to and from Greater Cairo, Lower Egypt, the northern coasts, the Suez Canal cities, central Sinai and northern Upper Egypt.
The Egyptian Meteorological Authority expects cold weather during the day on Friday in Greater Cairo, Lower Egypt, the northern coasts and northern Upper Egypt, and warm weather on South Sinai and southern Upper Egypt.
Very cold temperatures are predicted at night in all parts, reaching the point of frost in central Sinai.
Light rain is predicted on Halayeb and Shalateen, and the far south of Upper Egypt.
Maximum temperatures predicted on Friday:
Greater Cairo 18C
Alexandria 17C
Matrouh 17C
Sohag 19C
Qena 20C
Aswan 25C