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National Forecast

Issued at: 21 September 2020 09:24

TODAY - Monday 21st September

Mist, fog and low cloud will gradually clear today leaving a dry day with good spells of sunshine in most areas. However, remaining rather cloudy and misty in parts of the west and northwest. Highest temperatures will range between 15 degrees in the northwest to 21 degrees in the southeast. Winds will be mostly light and variable but will increase moderate southwesterly in the northwest later.


Cloud will increase tonight and it will be mostly dry apart from some patchy light rain or drizzle in the northwest. South to southwest winds will be mostly light to moderate but will freshen in the northwest overnight, becoming strong at times near coasts. Lowest temperatures of 8 to 12 degrees.

TOMORROW - Tuesday 22nd September

Tuesday will be mostly cloudy and it will turn rather breezy. Rain will arrive in the northwest by late morning and will move southeast across the country through the afternoon and evening. Moderate to fresh southwesterly winds, increasing strong at times near coasts and veering northwesterly in western areas later. Highest temperatures of 15 to 18 degrees.

National Outlook

Summary: Cool and changeable for the rest of the week, with spells of rain and showers but some drier periods too.

Tuesday night: Rain in eastern areas will clear into the Irish Sea on Tuesday night, with clear spells and scattered showers then extending from the west. A cool night with lowest temperatures of 4 to 8 degrees with light to moderate northwesterly winds.

Wednesday: Wednesday will be a cool day with sunny spells and scattered showers, mainly in western areas at first but becoming more widespread later in the day. Highest temperatures of 11 to 14 degrees with light to moderate west to northwest winds. On Wednesday evening, winds will back southerly and freshen in the southwest as persistent rain arrives here. This rain is expected to extend northeastwards to most areas on Wednesday night, although Ulster should remain dry. Lowest temperatures on Wednesday night of 4 to 7 degrees.

Thursday: Outbreaks of rain will continue on Thursday but there will also be some bright or sunny spells at times. Another cool day with highest temperatures of 10 to 13 degrees, in moderate to fresh winds which will vary in direction. Rain will clear from most areas by Thursday night with clear spells developing.

Friday: Friday is looking like a dry day with good spells of sunshine. Remaining quite cool with afternoon temperatures of 12 to 15 degrees, in a light to moderate north to northwest breeze.

Further outlook for the weekend: Remaining unsettled with showers or longer spells of rain, but daytime temperatures returning to near average.


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