Ireland is expected to see snow in the coming days with a "noticeable drop in temperatures" expected later in the week.
Sleet could arrive as soon as Sunday night while conditions remain blustery in the wake of Storm Malik.
A status yellow wind warning for Donegal will be in effect from 2pm on Sunday until 3am on Monday.
The alert states that "southwest winds veering northwest will reach mean speeds of 50 to 65km/h with gusts of up to 100km/h. Strong winds combined with high seas may lead to wave overtopping in coastal areas."
As for the rest of the country, most places will be dry on Sunday morning, with patchy light rain and drizzle affecting western areas will extend eastwards.
It will become windy by the afternoon as a spell of more persistent rain arrives into the west and northwest, spreading across the country through the day.
A clearance to scattered showers will follow in the evening, while oderate southwest winds will increase fresh to strong and gusty, veering west to northwest later and reaching near gale force in northern and northwestern coastal areas. Highest temperatures of 8 to 10C.
Sunday night will be dry in most areas tonight with clear spells. Scattered showers will persist, mostly over Ulster, where a few may turn to sleet and snow over hills and mountains.
Lowest temperatures of 2 to 5C with fresh to strong and gusty northwest winds slowly easing by morning.
A forecaster said for the week ahead: "Largely dry with some bright spells to start on Monday, it will turn cloudier by afternoon with patchy light rain and drizzle spreading from the northwest, many southern and southwestern areas will stay dry.
"Highest afternoon temperatures of 7 to 9C in moderate to fresh northwest to west winds, backing westerly and freshening later.
"A generally cloudy night on Monday night with light rain mainly affecting Ulster. Drier elsewhere with just scattered patches of drizzle. Lowest temperatures of 9 or 10C in fresh to strong westerly winds.
"A blustery day on Tuesday and cloudy for most with scattered patches of drizzle. Drier and brighter spells will develop over Ulster through the day. Highest temperatures of 10 to 12C in moderate to fresh and gusty westerly winds.
"A cloudy night on Tuesday night will keep temperatures from falling below 7 to 9C. There'll be outbreaks of rain and drizzle as westerly winds gradually ease mostly moderate.
"Wednesday will be a generally cloudy day with occasional bright spells and scattered outbreaks of light rain and drizzle, most frequent in western areas. Highest temperatures of 10 or 11C in moderate southwesterly winds.
"After a comparatively mild start a spell of rain moving southwards over the country on Thursday will bring a noticeable drop in temperatures when it clears through, with the chance of some showers of sleet and snow on to western coasts on Thursday night.
"Showery outbreaks of rain, sleet and snow for a time on Friday, with milder conditions returning through the weekend again."
