The heatwave rumbles on and today the threat has been raised, as an amber weather warning for extreme heat comes into place in some parts of Cornwall, ahead of being extended across the whole of the Duchy tomorrow.

The Met Office alert has been issued as the mercury is expected to reach around 23C in this area today, with other parts of the UK tipped for highs into the 30s.

A spokesperson for the national weather service said: "A hot spell is likely to develop from Sunday, likely peaking early next week, leading to widespread impacts on people and infrastructure."

Falmouth weather forecast hour-by-hour

Clear skies and a less than 5% chance of rain is predicted for the entire 24-hour period today.

  • Midnight: 18C
  • 1am: 18C
  • 2am: 18C
  • 3am: 18C
  • 4am: 18C
  • 5am: 18C
  • 6am: 18C
  • 7am: 18C
  • 8am: 19C
  • 9am: 20C
  • 10am: 20C
  • 11am: 21C
  • Midday: 22C
  • 1pm: 22C
  • 2pm: 22C
  • 3pm: 22C
  • 4pm: 22C
  • 5pm: 22C
  • 6pm: 22C
  • 7pm: 21C
  • 8pm: 21C
  • 9pm: 20C
  • 10pm: 19C
  • 11pm: 19C

What is a red severe weather warning?

The Met Office is forecasting an exceptionally hot spell on Monday and Tuesday leading to “widespread impacts on people and infrastructure”.

A red weather warning has been announced for parts of the country, although not in Cornwall - these are issued when “dangerous weather is expected”.

During this period you should take action to keep yourself and others safe from the impact of the severe weather, if you haven’t already done so.

What weather warnings mean

Cabinet Office minister Kit Malthouse has said the Government is preparing for a “surge” in demand on the NHS and other services due to the expected heatwave.

After chairing a meeting of the Cobra civil contingencies committee in Whitehall, Mr Malthouse urged the public to look out for people who were particularly vulnerable in the heat.