A WEATHER warning for a frost was issued today for this Saturday night, August 23, during the August Bank Holiday weekend in the rural parts of the borough of Croydon.
Weather expert Ian Currie, of Rickman Hill, Coulsdon, said: "We are on course for very low temperatures on Saturday night.
"The lowest I have recorded in the Chipstead Valley in August is 0.1C, on the August 25th 1993. This could be reached on Saturday night. Certainly grass frost is possible not just in the valley but elsewhere in Surrey.
"The lowest recorded in August in the UK is -3.3C, back in 1973,in Aberdeenshire."
After a gloriously warm and sunny summer, temperatures have taken a tumble in recent days with two nights that saw temperatures down to 2C or 3C in rural valleys just south of Croydon, said Mr Currie.
Cold air has spread down from the far north and although temperatures have reached 19C (66F) or 20C (68F) by day, under still, clear skies, night-time temperatures have plummeted this week.
