Connacht

Issued at: 16 August 2026 12:00

TODAY - Sunday 16th August

A cloudy day with outbreaks of rain and drizzle this afternoon. Some mist and fog patches will develop on hills and in coastal areas. The rain and drizzle will clear towards evening with drier conditions and perhaps the odd bright spell following from the west. Highest temperatures of 16 to 19 degrees in moderate southwest to westerly winds.

TONIGHT

Tonight will be cloudy and mostly dry with just a few patches of drizzle across the north of the province. Some mist and fog will also develop in northern areas. A mild night, with lowest temperatures of 13 to 15 degrees with mostly light westerly winds.

Pollen Forecast

Low today and on Monday

More information

Solar UV Index

Low to moderate today. Moderate on Monday

UV Index

TOMORROW - Monday 17th August

It will be a cloudy start to tomorrow, Monday, with patchy rain and drizzle in northern parts of the province. The afternoon will be mostly dry with a few sunny spells developing, but cloud will increase towards evening and rain will gradually spread from the west, turning heavy in places. It will be a humid day, with highest temperatures of 17 to 21 degrees in moderate westerly winds.

National Outlook

Overview: Mixed conditions generally with rain or showers at times but dry intervals too. Temperatures generally in the high teens in the northwest to low or mid-twenties in the south and east.

On Monday night, rain will spread southeastwards across Ireland. It will be heaviest in the northwest and will become lighter and patchier further to the southeast. Mild with temperatures not falling below 13 to 17 degrees and mostly moderate westerly winds, fresher along Atlantic coasts.

Tuesday will bring a fair amount of cloud and scattered showers, becoming more isolated later with better sunny spells developing. Highest temperatures of 16 to 17 degrees in the northwest to 22 or 23 degrees in the southeast with moderate to fresh westerly winds.

Tuesday night will be mainly dry. There'll be some showers in the west and northwest, which will become heavier by Wednesday morning. Lowest temperatures of 10 to 13 degrees with moderate west to southwest winds.

On Wednesday, showers in the west and northwest will spread to all areas. Some will be heavy or prolonged. Highest temperatures of 16 to 20 degrees with moderate, occasionally fresh westerly winds, veering northwesterly.

Thursday will be a cooler, fresher day with sunny spells and scattered showers. Highest temperatures of 15 to 19 degrees with moderate to fresh northerly winds.

Friday will bring a fair amount of dry weather, with sunny spells and well scattered showers. Highest temperatures of 14 to 18 degrees with moderate northerly winds.

Current indications suggest that next weekend will be mainly dry with bright or sunny spells and a few showers with temperatures in the mid to high teens.