Thursday was the brightest day of the week so far with 2.64 hours of string sunshine that produced a maximum of 20.1C, just below the August average. With a light breeze from the west it was a pleasant end of summer day.
With clearing skies the thermometer plummeted to a minimum of 7.4C at 06.54, which was 4.1C below the August average.
At dawn there was initially fog in the Kennet and Og valleys that grew into a larger fog bank.
The influence of strong sunshine shortly after dawn meant that the fog cleared by 07.15 and the thermometer recovered to 10.8C at 08.00, the second coolest start to the day this month, with the promise of more sunshine to come.