I remember it chucking it down either at the end of the 75 summer or 76.

Wasn't 75 when it abdolutely poured down in Hamstead, London? 

I wouldn't bank on that. The forecast uppers suggest a very volatile set up. 

There are some day on day differences too. Some days ago GFS suggested (briefly; maybe 1 or 2 runs only) that in my location the heat would be swept through early on Monday, giving just Sunday as really hot. It then switched back to Monday as last day. Over the past few days Tuesday is included and now most members on the 6z ENS seem to have heat through until Wednesday. It's all going to depend how far east and how quickly that low in the plume moves; on Thursday the heat is still there to the east. Nothing would surprise me.

There was a run of 14 consecutive days in late June/early July 1976 where somewhere in the UK recorded maxes of 32C or higher. AFAIK this has never been exceeded...

...yet.

Rain last year and drought this year. The vagaries of the British climate and being a small island surrounded by water. Feel sorry for the farmers as we don't seem to do average anymore

Just looking through the entirety of both GFS and AIFS latest runs, the general theme develops of the AH settings up a little further north, sometimes ridging toward/over the UK from the west; sometimes receding westwards as low pressure attacks from the N/NW. 

Temps a little above ave when the high's well over the UK, a cooler flow from the NW (even N) at other times.

Short Heatwave in the sense of heatwave criteria being met which atm is only 3 days here and less with you. 

I think that is right and as a stand alone heatwave plus long drought it is still exceptional.

Weather broke in 76 around the August Bank holiday just after the Minister for Drought Denis Howell was announced.😄

The Hampstead Storm was in 75 and there is a good account in a book by Richard Mabey called Cold Comforts

Be careful when dealing with meteorological jelly.

Yes, but very local. We were driving back from XChannel ferry to Finchley that evening, no suspicion of a storm until Regents Park, and in Finchley it had just been heavy rain, maybe 50mm. Hampstead IIRC had 300mm

Another roasting GFS 12z run. A couple of unsettled days then goes scorchio again. AIFS  even brings in HP later on , it's best run in a while.

6th to the 10th look unsettled though 

You mean that was forecast for the whole of June? Are you going to then claim victory? We can all see what's actually going on.

Yes apparently 6.72 inches of rain fell in a strip4 miles long by 2 miles wide, Hampstead being the centre

So much to resolve 02-04 July. I wouldn’t bet against it remaining hot until the end of the week. Also, any unsettled spell looks shortlived. GFS sets up more heat towards mid July. Crazy.

There are wobbling around, but they certainly don't suggest "summer is over" to me. 

Classic nw/se split. Autumn to the nw, high summer heat to se

No sign of it ending.

Never seen the grass go white so early in summer.

Standing water on thick green grass here in Ambleside! 

Like you are in a totally different climate zone up there!  But I envy you,  this heat is unpleasant especially at night without aircon.  

the pub run keeps the heavy rain away from the SE corner again as the heat dome holds on.  Then a fresher period before the Azores high pushes back in again. 

Its going to be a sweaty week down south! 

It's been well forecast the unsettled spell starting about 6th. GFS finally drops its quick return of heat. It really is second rate Op now compared to ECM and AIFS.  Long range models have HP returning 14th . We'll see.

ECM 0z joins the rest unfortunately. 

I feel we've seen the best this summer had to offer and July shaping up to be cooler and unsettled for much of the time.

It’s just trolling now

Im wasting my time as its deliberate, not lack of understanding, but here goes anyway - you’ve spent the last month writing off June, been wrong every single time, and now you’re doing the same with July. Everyone, including you, knows that to call anything one way or the other for an entire month is just plain stupid. 

Cooler unsettled between 6th and 10th is all I'd say atm.  Long rangers suggest heat could return 2nd half of July. 

Its absolutely not trolling. I waited for all the major models to roll out their 0z's and looked at the trend on all of them, which is exactly what YOU said to do.

The trend is very clear. The first week to 10 days of July will be nothing like June. 

Yes, I've been wrong about June largely, but there was never a stage when all the major models were largely in agreement.

Now, they are, and surely that can't be wrong for at least a week.