The Met Office has said that today (September 6) may be the hottest day of the year, with temperatures potentially hitting 33 degrees.

Another fine, dry and hot day with lighter winds is predicted, with this evening staying very warm and humid into the evening and overnight.

Tomorrow, any early fog or low cloud will clear, but the Met Office has said it may linger on the coast.

Otherwise, the day is set to stay dry and hot with plenty of hazy sunshine.

In the Met Office’s outlook for the weekend weather will be predominantly dry and hot with long sunny spells throughout.

Some overnight mist and fog remain possible, and very warm and humid by night.

We have put together an hour-by-hour forecast of the weather in Hertfordshire today so that you can plan your day:

  • 11am - 22°C
  • 12pm - 25°C
  • 1pm - 26°C
  • 2pm - 27°C
  • 3pm - 28°C
  • 4pm - 29°C
  • 5pm - 29°C
  • 6pm - 28°C
  • 7pm - 27°C
  • 8pm - 26°C
  • 9pm - 25°C
  • 10pm - 24°C
  • 11pm - 23°C

Met Office Chief Meteorologist Neil Armstrong said: "High pressure is situated to the southeast of the UK, which is bringing more settled conditions and temperatures well above average for the time of year.

"While the highest temperatures are expected in the south, heatwave conditions are likely across much of England and Wales especially, with parts of Scotland and Northern Ireland also likely to see some unseasonably high temperatures.  

"An active tropical cyclone season in the North Atlantic has helped to amplify the pattern across the North Atlantic, pushing the jet stream well to the north of the UK, allowing some very warm air to be drawn north.

"It’s a marked contrast to the much of meteorological summer, when the UK was on the northern side of the jet stream with cooler air and more unsettled weather."