National Forecast

Issued at: 17 July 2026 09:00

TODAY - Friday 17th July

Dry today with plenty of summer sunshine, hazy at times, with some mist patches this morning. Top temperatures will generally range 24 to 29 degrees, warmest in southern counties. Highest temperatures for northwestern areas will range 17 to 22 degrees due to light to moderate northerly breezes.

TONIGHT

Dry and mostly clear tonight with just light to moderate northerly breezes. Some mist patches will form locally. A little fresher than recent nights with lowest temperatures of 9 to 14 degrees.

TOMORROW - Saturday 18th July

Dry and warm for most tomorrow with no more than moderate northerly breezes. Highest temperatures of 23 to 27 degrees across the Midlands, South and East with long spells of summer sunshine. Cloudier for in the north and northwest with highest temperatures of 17 to 22 degrees.

National Outlook

Overview: Mostly dry with high pressure centred in the nearby Atlantic. A bit cooler and cloudier for west and northwest counties with patchy drizzle at times. Some rather warm sunny spells elsewhere.

Saturday night will be dry and mostly clear. Patches of mist and fog will set in locally though. Fresher than recent nights with lowest temperatures of 9 to 13 degrees in a light to moderate northerly breeze.

Sunday will be dry with hazy sunshine and light northerly breezes. It will be warmest over Leinster and Munster with top temperatures of 21 to 25 degrees. A little cooler and cloudier at times across Connacht and Ulster with top temperatures of 16 to 21 degrees, best values away from coasts.

Monday to Wednesday will continue largely dry with moderate northwest breezes. Rather cloudy and damp at times for Connacht and Ulster with highs of 16 to 22 degrees; again best values away from coasts. Warmer for Munster and Leinster with a mix of cloud and sunshine and highs of 21 to 25 degrees.