Temperatures are about to fall by as much as 14 degrees in Wales, and with cold Artic winds meaning some areas will struggle to get above freezing. Porthmadog was the warmest place in the UK on Tuesday with highs of 19°C, but today those temperatures will fall to 5°C.
The Met Office forecast for Wales says that Wednesday (March 30) will be cloudy with outbreaks of rain that will turn to sleet or wet snow over the highest ground during the afternoon.
The forecast for Wednesday night says: "Outbreaks of rain and hill snow will clear southwards this evening with most places becoming dry by midnight. Isolated wintry showers may affect parts of the east towards dawn. Minimum temperature -2 °C.."
