Tonight, it is expected to be cloudy with rain and hill snow and then overnight, snow may fall on lower ground. The minimum temperature will be 0 °C.
On Friday, there will be a few wintry showers across the North and South but it will be a mostly dry day. It will feel cool in the fresh northeasterly breeze with a maximum temperature 7 °C.
Wintry showers are also forecast overnight into Saturday but are due to ease during the morning.
Sunday morning should be drier but rain and snow showers are possible in the afternoon.
The latest warning comes just days after heavy snow cause chaos during rush hour yesterday morning.
Several lorries were stuck in Moira and around Lisburn and traffic was queued back between Hillsborough and Dromore following an accident.
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