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National Forecast

Issued at: 17 August 2018 14:33

TODAY - Friday 17th August

Cloudy this afternoon and evening with rain and drizzle gradually clearing. Highest temperatures of 16 to 20 degrees in southwesterly breezes.

TONIGHT - Friday 17th August

Mild and humid tonight with temperatures not falling below 13 or 14 degrees. Cloudy and misty with patchy drizzle and fog, and more persistent rain along northern and northwestern coastal fringes.

TOMORROW - Saturday 18th August

Saturday will be a warm and humid day with temperatures reaching 21 to 26 degrees through Munster and Leinster, slightly less elsewhere. Thicker cloud across parts of north Ulster and north Connacht will bring outbreaks of rain and drizzle during the day but it'll be generally dry elsewhere. Heavier rain will develop along the Atlantic Seaboard during the evening. Southwesterly breezes.

National Outlook

Headline: Humid, very mild or warm in places over the weekend and early next week but cooler fresher weather will develop around midweek.

Saturday Night: Becoming wet on Saturday night, as rain becomes widespread and heavy in places overnight. Breezy as well with fresh and gusty south to southwest winds, strong in some coastal areas. Very humid and close with lows of 14 to 17 degrees Celsius.

Sunday: A humid and warm day for many, with temperatures in the high teens or low twenties. A damp, wet start with rain, mist and low cloud for a time in the morning, but turning drier and somewhat brighter for the afternoon and evening in most places, but there will be some light showers. Very mild, humid and misty overnight, with drizzle at times in lows of 14 to 15 degrees Celsius.

Monday and Tuesday: It will still be quite warm and humid on Monday and Tuesday, with temperatures in the high teens and low twenties. There will be a lot of cloud in many areas, with some scattered outbreaks of rain or showers at times, but there will be good dry periods as well with some sunny spells, probably best in more eastern parts. But heavier rain will move into western areas later Tuesday.

Wednesday to Friday: The latest indications suggest a spell of heavier rain countrywide on Tuesday night and early Wednesday morning, will clear to brighter fresher conditions for the rest of Wednesday with sunny spells and a few showers. Cooler, fresher conditions are indicated for Thursday and Friday with sunny spells and showers at times.

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