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National Forecast

Issued at: 20 September 2020 22:25


Tonight will be dry with clear spells but areas of mist and fog will form quite widely in light winds. Lowest temperatures of 5 to 9 degrees generally but possibly a few degrees lower in some rural, inland parts.

TOMORROW - Monday 21st September

A foggy start in many areas on Monday with mist, fog and low cloud slow to clear. It will be another dry day with good spells of sunshine in the southeast during the morning, extending to most other areas later. Remaining rather cloudy in the northwest, however. Highest temperatures will range between 15 degrees in the northwest to 21 degrees in the southeast, where the best of the sunshine will be. Winds will be light and variable but will increase moderate to fresh southwesterly in the northwest later.

National Outlook

Outlook Summary: Turning unsettled for the rest of the week with rain or showers and cooler conditions.

Monday night: Cloud from the west will extend over much of the country by morning. Lowest temperatures of 7 to 11 degrees, coldest to the north, in light to moderate southwesterly breezes which will freshen in the west and northwest towards dawn with patchy drizzle developing there.

Tuesday: An unsettled day as a band of persistent rain will move into western areas in the afternoon, spreading eastwards during the day and clearing to showers in the west in the evening. Highest temperatures of 15 to 18 degrees, in moderate to fresh and gusty southwesterly winds, veering northwesterly and easing as the rain moves through.

Tuesday night: The rain will clear eastern areas overnight, becoming a largely clear night but cloudier with showers in western areas. Grass frost possible with lowest temperatures of 3 to 6 degrees in mostly light west to northwest breezes.

Wednesday: A cool and unsettled day with showers becoming widespread through the afternoon. Highest temperatures of 11 to 13 degrees in light to moderate westerly breezes, freshening in the west in the evening.

Wednesday Night: Further showers or longer spells of rain will affect mainly western parts of the country on Wednesday. Lowest temperatures of 5 to 7 degrees with moderate to fresh westerly winds.

Further outlook: Staying rather unsettled with further rain and showers. Cool during the days with temperatures below average for the time of year.


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