A system of warm south-south-easterly winds is set to bring notably warm weather to the UK early this week, with Tuesday forecast as the warmest day before temperatures return to September averages. However, this warmth will be followed by an approaching Atlantic depression bringing wetter and windier conditions, particularly affecting Scotland, Northern Ireland, and western regions, whilst drought-affected areas in central, southern and eastern England are likely to see far less rain.

The detailed outlook shows Monday beginning chilly with possible fog patches, followed by brighter conditions and mid-to-high teens temperatures (reaching 20°C in southern areas). Tuesday will see temperatures climb to 20–26°C across England and Wales with strengthening southerly winds, though rain will move into Northern Ireland from the afternoon and track eastwards through the evening. Wednesday will bring persistent and occasionally heavy rain with strong winds, before high pressure builds in on Thursday, bringing calmer and drier conditions. The forecast underscores September's stark north-west to south-east rainfall contrast: whilst parts of north-west Scotland have received nearly one-and-a-half times their average September rainfall (with one Highland location recording rain for 27 consecutive days), drought-affected areas in the south-east have remained largely dry despite urgent need for sustained rainfall.