The latest from Llanelwedd
It's a glorious day at the Royal Welsh Show with hardly a cloud in the sky and unbroken sunshine.
Temperatures this afternoon soared to 26 Celsius, 79 Fahrenheit in the shade, making it the hottest day at the show since July 2008 - and the hottest day of the summer so far!
The sun is very strong so people are advised to wear a hat, use a high factor sun cream and drink plenty of water.
Tomorrow and Thursday will be cloudier than today in Llanelwedd but it will remain dry, bright and warm with temperatures rising into the low 20s (Celsius). It will also feel humid with not much wind to speak of.
If you're in Cardiff tomorrow to watch the Olympic women's football at the Millennium Stadium it will be hot and should be sunny with a top temperature of 26 Celsius, 79 Fahrenheit.
On Friday, cooler weather will spread from the north-west with showers in places. The weekend will be cooler and fresher everywhere with a mixture of bright or sunny spells, showers and some dry weather too.
In London temperatures may soar to 31 Celsius, 88 Fahrenheit tomorrow - making it the hottest day of the year so far. The last time the Olympics were held in London in 1948 the games started with a heat wave but then it cooled down with a few heavy downpours.
This time round, it will be warm and humid for the opening ceremony on Friday evening but with a risk of heavy and possibly thundery showers.
After that it looks like turning cooler and fresher with sunny spells and showers.
So the weather may not be on top form for the first week of the Olympics, however the very wet conditions we had earlier in the summer are not expected to return. Overall, the weather will be typically British: changeable and mixed - much like it was in 1948!