Low pressure will dominate conditions over the weekend, meaning further spells of rain in the coming days, with this expected to be heaviest in the south and east, according to Met Éireann.
This morning, Friday, November 22, will start off mostly cloudy, with showers or longer spells of rain in places; however, some brighter intervals will develop in the south this morning.
It will brighten up elsewhere this afternoon, but further showers or spells of rain will continue to occur, especially over the eastern half of the country, with some heavy falls, the national meteorological office warns.
Highs of 7° to 9° are expected today in light or moderate easterly breezes, with these fresh at times on east and north coasts.
This evening and early tonight will see persistent and occasionally heavy rain near the east coast but elsewhere it will be largely dry at first with variable cloud and clear spells and just the odd shower.
Lows of 1° to 5° are predicted, with a risk of frost where clear spells prevail in the west and south-west.
Patches of mist and fog will form in the light to moderate mainly northerly winds, but winds will be easterly in direction near Irish Sea coasts.
With the unsettled conditions for the next few days, there will be very limited drying opportunities. There are some indications that there will be better opportunities in the latter part of next week.
Similarly spraying opportunities will be limited in the coming week but better opportunities later in the week.
These conditions will prevail over the coming week as there will be spells of rain or showers much of the time, Met Éireann says.
Tomorrow, Saturday, November 23, will be a rather dull and wet day in midland, eastern and northern areas with outbreaks of rain, which will be heavy at times, according Met Éireann.
Drier and brighter conditions are expected with just a few showers, prevailing in the west and south-west; however, mist and fog patches may be slow to clear in these parts during the morning.
Top temperatures will reach 7° to 10° in light or moderate northerly breezes.
Lows will drop to 0° to 5° with a risk of frost, coldest under the long clear spells in the south. Mist and fog patches will form in parts.
It will be mainly dry and bright in the north and east to begin on Sunday, with any early mist, fog and residual drizzle patches clearing, but thickening cloud in the west and south will see the arrival of outbreaks of rain in Munster during the morning.
Top temperatures of 7° to 11° are given in light to moderate south to southeast winds, freshening on southern and southwestern coasts.
Further spells of rain are predicted for Sunday night, with temperature lows of 4° to 8°.