Thunderstorm warning for Scotland as Met Office predicts scorching 30C heat for parts of Britain
A colossal shift ahead of the weekend will send the mercury rocketing
Britain set for fortnight of rain, thunder and chilly winds as northerly winds delay summer heat
A cold first weekend of summer is expected
Heatwave to fizzle in a week of rain as Britain prepares for a soggy start to summer
Temperatures nationwide will slump through the next few days
