UK weather maps have shown the exact date on which the country is predicted to enjoy temperatures above 20C. An Indian Summer, a warm, calm spell of weather occurring in autumn, is seemingly on its way later this month. WXCharts suggests that Britain will experience highs of 23C on Saturday, September 20, with the mercury highest in the south east, East Anglia, the Midlands, and the Welsh borders. Parts of northern England may also see warm conditions.
The counties that are expected to see temperatures of at least 20C include: Norfolk, Suffolk, Kent, Essex, East Sussex, West Sussex, Surrey, Hertfordshire, Bedfordshire, Cambridgeshire, Northamptonshire, Buckinghamshire, Berkshire, Surrey, Hampshire, Berkshire, Oxfordshire, Warwickshire, Worcestershire, Gloucestershire, Wiltshire, Dorset, Devon, Somerset, Herefordshire, Shropshire, Staffordshire, Leicestershire, Rutland, Cheshire, Derbyshire, Nottinghamshire, Lincolnshire, and parts of East Yorkshire and West Yorkshire. The Met Office forecasts that between Sunday, September 14, and Tuesday, September 23, the UK will experience weather that is "generally unsettled with low pressure dominating much of the period".