Significant difference between BBC and Met Office

[WitchWithoutChips]

BBC weather says that it will be 40° here on Monday.

Met Office says it will be 35°.

Please can anyone explain why there is such a discrepancy?

It is a zombie thread but the answer to @PortiasBiscuit question is the Public Contract Regulations.

All organisations spending public money must adhere to the PCRs to ensure the best deal is gained for the taxpayer. This means that government owned providers who might sell to other gov/public sector orgs must compete with the whole market. This affects Met Office and also organisations like Ordnance Survey, who may once have been the default supplier. Not only does this ensure that the best financial deal is made for the taxpayer, it ensures that the government owned entity is not unduly skewing the market. But of course financial efficiency is not the only measure of quality and sometimes (often?) this arrangement can lead to inferior service … though on the flip side a healthy market makes sure everyone is developing their offering.

the punch line to all of this is that Met Office bungled the procurement of their massive supercomputer and have recently been fined £24m!

I deleted the BBC Weather app years ago. So inaccurate. Met Office one is far more reliable.

I didn't mind it's zombieness.
It's right.
BBC = vague
MetOffice = closer
OYBBK = closest

That is all - I'm full of cold/cough/throat bug with added conjunctivitis, so can only type with one eye, IYSWIM. 😷