Yes I can understand getting out of a vehicle into the sticky heat and vice versa. Try Manila in the rainy season, though.  Makes the UK experience tame by comparison with added hydrocarbons and worse. One reason why malls are so popular there. 

Couldn't find a 43C unfortunately. There are quite a few 42Cs as you say, but with the sparse network I'd be very surprised to an official report this high regardless of whether it is reached somewhere or not.

42c In Flintshire and Wrexham. The Welsh June record is 33.7c

If it was accurate then you would expect to se an official 41C though, or at least a high 40.x and therefore a new UK all-time record. There's a huge area of 40+.

London actually looks relatively cool today.

After that, a gradual cool down to more pleasant conditions by the weekend to 24c.

30c, 35c, 38c, 37c, 35c, 29c 

Friday now looks like another scorchio day.

A lot will depend on just how quickly the hot air clears east. The high res models have 35C being hit fairly early on and then cooling rapidly through the afternoon. But we have seen delays to the heat so a lot could change.

BTW a bit of historic trivia: the first day of the 1976 heatwave was 50 years ago today!

However, despite the fact that today started off with thick fog here in Edinburgh with rain forecast for at least some point in time during the rest of the day, the Met Office are going for a maximum of around 27°C for here as early as tomorrow.

Quite often, it tends to be warmer than what is actually forecast these days so if that forecast end up being correct, we would well end up at least challenging that record, if not actually beating that to give us our hottest June day on record (that would also give us our hottest day of this year so far if that was to happen).

Meanwhile, the highest recorded June minimum temperature is currently 17.2°C with that record being set much more recently in 2023. However, the Met Office are forecasting a minimum temperature of no lower than around 17°C for tomorrow night going into Wednesday (that would officially be tomorrow's minimum temperature due to each observation day starting and ending at 09:00 UTC).

This means that tomorrow's minimum temperature could well ending up challenging that record, if not actually beating it to give us our warmest June night on record. Putting all of that together, it is possible that Edinburgh could see both its hottest June day on record and its warmest June night on record all in the space of just 24 hours.

However, a lot will depend on the presence or absence of any North Sea influence. The records which I mentioned above are for the botanic gardens in Edinburgh which are always much cooler than Edinburgh Gogarbank at this time of the year whenever there is a wind from off the North Sea. This means that if there is a strong North Sea influence, it will probably end up being much cooler here as a result which would then scupper any chances of either of those records being broken.

However, the Met Office are also predicting that the wind won't be coming in from off the North Sea and this means that those records look very much on, especially since the highest temperatures in Edinburgh tend to be recorded at the botanic gardens when the wind is blowing offshore.

Peak heat in the south seems to be through a line Reading, Swindon, Hereford,on Thursday.

Cheltenham could be a Hot Spot once again.

Friday the heat has moved away apart from Eastern Counties although it might hang on longer .

Actually showing some heavy showers for this area today about 6 this evening.I will believe it when I see it🤔

If this trrue then Birmingham being so close to Wales border might get a new record as they only got 37c back in 2022 while Nuneaton my app was showing 39C and 40.1c in my garden shade.  I am hoping to see 38C or above for here.

Yes, a day for Brogdale or Mildenhall

29, 35, 38, 36, 34, 31, 33, 39, 35, 33, 36, 38, 36, 35, 33, 31

And that's just on the very low res temp charts.

Further detail

During the heatwave expected to affect a large part of England and Wales this week, the highlighted area now looks increasingly likely to see a two to three day period where maximum temperatures in the shade exceed 37 Celsius, perhaps rising to 38 to 40 Celsius in some places. The heat will be accompanied by high humidity, exacerbating the potential for discomfort and health impacts, with very warm and humid night times also reducing the ability for people to recover overnight.

Significant disruption to daily life is likely and the public should take every effort to make precautions and adapt their daily routines where possible to cope with these levels of heat, which up to now have been extremely rare for the UK.

This week the metoffice is going for 40 on wednesday 😮 - https://weather.metoffice.gov.uk/forecast/gbwxb1tp2#?date=2026-06-22 

Meanwhile xcweather (gfs) says 24 on the same day - https://xcweather.co.uk/forecast/st_helier 

That's a fairly ridiculous discrepancy no?

Met Office auto output for here now has 40C for both Wed and Thur.

Roll on Autumn.💨

An interesting week coming up 🔴

I think its genuinely dangerous in the far eastern part of the South West region in particular. The government should be calling a COBRA meeting; its going to be the most extreme bit of weather we have seen in decades and there need to be contigency plans in place for this.

In a worst case scenario we could see something like 3 days in a row with  35/23 or worse, with one day of something like 40/28 or worse which would be considered dangerous in somewhere like India or the middle east, but in a country without widespread aircon its extremely serious and could result in deaths.