Monday will be a cool day with occasional heavy showers of rain, hail and sleet, most frequent across the western half of the country.
Outbreaks of rain will occur in the north and east of Ulster later on Monday night. It will be drier with good sunny spells further south and east. Fresh west northwest winds will make it feel cooler everywhere.
Daytime temperatures will reach 5-7c but it will feel a few degrees colder in the fresh breeze. Temperatures on Monday night will dip no lower than 3-4c.
Winds will be fresh west northwest with average speeds of 30kmh, strongest in exposed coastal locations of the north and west. Winds will ease gradually on Monday night.