Overview

• The Met Office issued a yellow rain warning for southwestern Scotland from 3am to 10am Monday, with a risk of surface‑water flooding and difficult travel.
• Showers, gusty winds and the chance of thunder are expected across the UK this week, with some spots seeing prolonged downpours and up to roughly 50mm of rain.
• Another early‑September heatwave is unlikely in the UK, with temperatures near average overall and only brief mid‑20s Celsius possible in parts of eastern and southern England.
• The Met Office says summer 2025 was almost certainly the UK’s warmest on record, following four official heatwaves and persistently above‑average temperatures.
• Chicago enjoys a sunny, comfortable Labor Day before a strong cold front Wednesday brings showers or storms and a sharp cooldown, with daytime highs potentially falling into the upper 50s by Thursday and challenging record low maximums.