I didn't "cut out and keep" the Met Office page for Benson this morning, but it had one dark cloud for 1000, and then white clouds for the rest of the day.
The same site's weather radar showed the yellow, pink and red stuff already over Oxfordshire (since about 0500) and still moving North from W Sussex and Hampshire, with no chance of it clearing before about now. It's still drizzling.
Piss-up, meet brewery.