The Met Office has issued warnings of heavy and possibly thundery showers on Friday and Saturday. These are likely to become slow moving giving some places around 15-20 mm of rain in an hour or less and perhaps 40 mm in a period of two or three hours.
The downpours may lead to localised flooding and potential disruption to transport and outdoor events.
With the hit and miss nature of showers, some places will escape the heavier ones.
Friday's weather with Simon Parkin
Upside Down Rainbows
Thursday night's weather with Simon Parkin