Don’t let the sunny start fool you.

Met Éireann has extended its Status Yellow snow ice warning until Sunday, with temperatures expected to plummet as low as -5C tonight, Friday.

While today will be mostly dry with good winter sunshine and just the small chance of an isolated wintry flurry, temperatures will creep no higher than 4C so woolly hats and scarves are a must.

Outlook for the next 7 days

More information at https://t.co/9gKN6SVok4 pic.twitter.com/Lpl660mmwa

— Met Éireann (@MetEireann) February 1, 2019

The national forecaster is warning that ice will re-form quickly after dark ‘with a severe frost expected’.

It will remain dry tonight as temperatures fall to between -2 and -5 degrees, meaning that any flurries of snow may stick around.

“Ice and frost will gradually clear on Saturday morning to leave a mix of bright spells and occasional showers with light to moderate west to northwest breezes.” Met Éireann reports.

Saturday night will bring another cold and frosty night with icy stretches on untreated surfaces and lowest temperatures of zero to -3 degrees.