A cold snap is on the way tonight (Monday) with a yellow weather warning for snow and ice across Northern Ireland issued by the Met Office.
A few scattered snow showers are expected, giving a slight covering in places, along with a widespread frost.
The minimum temperature will reach -4 degrees C.
The Met Office has said 1-2cm centimetres of snow could settle in some places, but this is most likely over higher ground and towards the north coast.
The warning is in place from 9pm on Monday until 10am on Tuesday.
It said snow showers and icy patches are likely to cause some travel disruption, with longer journey times by road, bus and train services.
It has also warned of injuries from slips and falls on icy surfaces and icy patches on some untreated roads, pavements and cycle paths.
Tomorrow (Tuesday) is expected to be cold and bright with some sunny intervals and a few snow showers, mostly across northern counties. The maximum temperature will be 5 °C.
The outlook for Wednesday and Thursday is dry, cold and sunny with a chance of rain and snow on Friday.