BRITONS are bracing for temperatures to rise to a scorching 24C today following a miserable week of heavy rain and thunder.24C Todays forecast is likely to contain warm periods but also showers which could be thundery. The heaviest ones probably affect the south-west and Scotland, whereas locally temperatures could reach 24C (75F), hot weather charts from Net Weather have revealed. Today’s forecast on Weather Outlook said: “There will be warm periods but also showers which could be thundery. [contfnewc] [contfnewc] “The heaviest ones probably affect the south-west and Scotland. “Locally temperatures could reach 24C (75F).” According to the Met Office, across the UK there will be cool and grey weather in the northeast with rain at times before the sun shines. With a slightly brighter spell further south and west with some sunshine but also showers. These will particularly come for north Wales and northwest England where they could be thundery. But for those living in the south-w..