National Forecast

Issued at: 03 August 2026 12:00

TODAY - Monday 3rd August

A mix of cloud and bright or sunny spells for a time today with scattered showers. Becoming mostly cloudy later with showers or longer spells of rain pushing up from the south this afternoon and evening. Some heavy, potentially thundery downpours are possible, bringing a risk of spot flooding, especially in the southeast and west. It'll be humid with highest temperatures of 19 to 24 degrees in light to moderate easterly winds becoming mainly southeast this afternoon.

TONIGHT

Mostly cloudy with limited clear spells tonight. Heavy rain or showers will continue to extend northeastwards over the country, bringing a continued risk of spot flooding. The showers will gradually ease in most places later in the night. It'll be another mild and humid night with lowest temperatures of 12 to 16 degrees in light southerly breezes.

TOMORROW - Tuesday 4th August

After a mostly cloudy and misty start to tomorrow, Tuesday, with patchy rain and drizzle in parts, sunny spells will gradually develop along with scattered showers. Some of the showers will be heavy and thundery, especially over parts of Connacht and Ulster. Continuing humid with highest temperatures of 18 to 23 degrees, coolest in the northwest, with light to moderate southwest to west winds.

National Outlook

Overview: Cool and unseasonably breezy on Wednesday; wet too for Ulster. Well-scattered showers following on Thursday and Friday, with more widespread showers this weekend.

Tuesday Night: Becoming mainly dry for a time early on Tuesday night as showers become isolated. It will stay mostly dry in the east and south but showers will feed in from the Atlantic over western areas, with more persistent rain developing in the northwest overnight. Lowest temperatures of 11 to 14 degrees with mostly moderate westerly winds, freshening near western and northwestern coasts towards morning.

Wednesday: Cooler and rather windy on Wednesday. Current indications suggest it'll be damp or wet and unseasonably blustery with outbreaks of rain and drizzle affecting Ulster and mainly northern parts of Connacht and Leinster, accompanied by fresh to strong and gusty westerly winds. The rain will be heaviest in west and north Ulster with the potential for spot flooding there. Brighter and drier conditions further south, with a mix of sunny spells and scattered showers and mostly moderate to fresh west to northwest winds. Highest temperatures of 14 to 19 degrees. Rain or showers will ease and becoming increasingly confined to western and northern coasts on Wednesday night, leaving variable cloud and clear spells. Westerly winds will ease light to moderate overnight. Lowest temperatures of 8 to 11 degrees.

Thursday: A mix of sunny spells and scattered showers for Thursday. Cloud will increase near Atlantic coasts towards evening with patchy rain and drizzle developing. Highest temperatures of 15 to 19 degrees in a light to moderate westerly breezes.

Friday: Some bright or sunny spells in the east and south at first, but mostly cloudy conditions elsewhere, with outbreaks of rain and drizzle spreading southeastwards through the day, becoming lighter and patchier as it does so. Highest temperatures of 16 to 19 degrees with light to moderate southwesterly winds freshening near western and northwestern coasts later.

Next Weekend: Mixed and unsettled conditions look set to persist at first, with low pressure continuing to dominate. A chance of more settled conditions developing later in the weekend.