Overview

• WXCharts maps indicate London, Luton and Southampton could reach about 20C on Wednesday, with nearby southern areas around 18–19C.
• A ranked list from the same maps puts Norwich, Birmingham and Worcester near 19C, and Cardiff, Manchester, Liverpool and Stoke near 18C.
• Northern and western parts of the UK are forecast closer to 14–15C midweek, highlighting a pronounced regional contrast.
• The Met Office expects rain and stronger winds in northwestern regions while the southeast stays largely dry and bright at the start of October.
• Forecasters warn the weekend may turn unsettled as the remnants of Hurricane Humberto could influence conditions, with lower confidence beyond and an outlook of wetter, windier spells in the north, longer dry periods further south, and possible colder nights and fog later in the month.