During the day: The Kingdom will be under the influence of a shallow low-pressure system. The weather will be cold and partly to mostly cloudy, with occasional rain expected in the north, gradually extending to the central and eastern regions. Rain will be heavy at times in limited areas of the northern regions and the northeastern desert, possibly accompanied by thunder and hail. Light rain is also expected in parts of the southwestern regions during the evening. Winds will be moderate westerly, becoming brisk at times. At night: The weather will be very cold and partly to mostly cloudy at times, with light rain expected in the north and central regions of the Kingdom and limited areas of the southwestern regions. Winds will be moderate northwesterly.