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National Forecast

Issued at: 19 January 2020 21:33

TONIGHT

Dry and cold tonight with a sharp frost and patches of mist and fog. Lowest temperatures minus 2 and plus 2 degrees, coldest in Leinster and Munster. Cloud will increase in Connacht and west Ulster and southerly breezes will freshen.

TOMORROW - Monday 20th January

On Monday frost and fog will clear during the morning to give a dry day. The best of the sunshine will be in Leinster and Munster. It will be cloudier in Connacht and Ulster. Highest afternoon temperatures of 5 to 9 degrees generally in light southwest breezes but fresher near west and northwest coasts.

National Outlook

High pressure will still dominate our weather for much of the week ahead with weak fronts close to us at times. Overall mainly dry weather is expected with just small rainfall and less cold than over the weekend

Monday night: Some frost and fog on Monday night in the south and east and some midlands areas also with lows of +1 to -2 degrees Celsius, but cloud and more of a breeze should keep temperatures to between 2 and 6 degrees in western and northern counties and prevent frost there but some patchy rain is likely in the northwest.

Tuesday: Rather cloudy in many areas especially in northern and northwestern counties where there will be some light rain or drizzle at times but dry periods as well. Mainly dry elsewhere but there may be a little drizzle in places. Afternoon highs of 6 to 9 or possibly 10 degrees Celsius generally but 10 or 11 degrees in parts of the north and northwest. Further patchy light rain drizzle or fog on Tuesday night with temperatures between 4 and 8 degrees Celsius in many areas, however there could be clear periods in parts of the east and south with temperatures falling to 1 or 2 Celsius and a slight frost.

Wednesday: Rather cloudy on Wednesday also, many places dry but there will still be a little patchy drizzle or fog in places. Winds very light and afternoon highs of 7 to 10 degrees Celsius. For many it will be rather cold and cloudy on Wednesday night but frost developing where cloud breaks, most likely in parts of the east and northeast.

Thursday and Friday: rather cold but mainly dry with a good deal of cloud but some sunny breaks at times also. Afternoon temperatures of 6 to 8 or possibly 9 degrees Celsius in light breezes. Slight or sharp frost at night where cloud breaks develop.

Weekend: There are indications of more unsettled mobile Atlantic type weather setting in over next weekend bringing some wet and possibly windy spells.

 

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