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National Forecast

Issued at: 20 May 2018 21:54

TONIGHT - Sunday 20th May

Mostly overcast overnight, with widespread rain, persistent and locally heavy in places, especially in Munster, Connacht and in west Ulster. However, in the southeast, rain will be lighter and patchy. Misty in many areas, with hill and coastal fog. Minimum temperatures 8 to 11 Celsius, in mostly light south to southeast winds, but winds will become moderate to fresh northerly along Atlantic coasts.

TOMORROW - Monday 21st May

Monday morning will be overcast, with persistent rain in most areas and with some heavy bursts, especially in parts of west Munster, Connacht and west Ulster. It will be mainly dry in the far southeast and mostly dry conditions will develop in east and southeast counties during the day. It will also become mostly dry along the west coast before evening and rain and drizzle will gradually begin to fizzle out in many other parts as the day progresses. Cool in many areas, with maximum temperatures generally of just 10 to 13 Celsius, but it will be milder in the east and southeast, with values of 15 to 18 Celsius. Winds mostly light to moderate northerly but light variable in the east and southeast.

National Outlook

Headline: Becoming mainly dry and settled for the rest of the week, with sunny intervals and just a few scattered showers. Becoming relatively warm from midweek onwards, with above normal temperatures.

Monday night: Many areas dry, with variable cloud cover, but some patchy light rain or drizzle will occur. Cool, with light to moderate northerly breezes. Min. 5 to 8 Celsius.

Tuesday: Any early morning mist or drizzle will clear and it will become mainly dry, with bright or sunny spells developing in many areas, especially in the east and south. Still quite cool in the west and northwest, with maximum temperatures of 12 to 15 Celsius, but warmer elsewhere, with values of 15 to 18 Celsius, possibly up to 19 degrees in the southeast. Winds light to moderate, north to northeast in direction.

Wednesday to Friday (inclusive): Current indications are that it will be quite warm and mostly dry, with sunny intervals and just a few scattered showers. Daytime temperatures will reach the low 20s in many areas, but it will be cooler on coasts, with sea breezes. Winds will be mostly light to moderate east to northeast, fresh at times on the southeast coast.

Next weekend: Early indications suggest that it will remain warm and mostly dry, with some sunshine.

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