Pentwyn (Cardiff) weather

Headline:

Frost overnight. Cloudier tomorrow with patchy rain. Breezy, but milder.

This Evening and Tonight:

Mostly dry this evening and overnight with clear periods. Patches of frost and fog forming, especially in the east, though fog lifting onto the hills during the early hours as winds strengthen. Cloud also slowly increasing in the far west. Minimum temperature 0 °C.

Monday:

Dry at first with some sunshine. Cloud increasing from the north and west bringing the odd spot of rain. Rain more persistent in the northwest later. Breezy. A little milder. Maximum temperature 8 °C.

Outlook for Tuesday to Thursday:

Often fairly cloudy and breezy. Occasional patchy light rain or drizzle in the north and west. Milder than of late, though local frost and fog possible where cloud breaks overnight.

High pressure will lie close to the southeast of the UK initially, with generally settled conditions across many parts. Cloud amounts will be variable, with some frost and fog in the south and east, this slow to clear, but some rain in the far northwest. A weakening frontal system looks like it will edge east across the UK over the weekend, before high pressure briefly builds back in from the west in its wake. Low pressure then seems likely to increasingly influence the UK weather later in the period, with some rain and windier conditions affecting most if not all parts. Temperatures are likely to be generally a little above average, especially in the north, though more frost and fog patches are likely under clearer skies and lighter winds.

A dominant flow from the Atlantic looks likely to produce an unsettled, milder and windier than average period. This is likely to result in areas of rain and periods of stronger winds affecting most if not all parts of the UK at times, though with the wettest and windiest weather probably occurring towards the north and west. However, the potential for brief colder spells with associated frost, ice and snow remains, following any deep lows crossing the region.