The weekend is looking showery and cool. We have an unsettled Friday with blustery showers, sunny spells coming and going. Frontal rain in the far south where pulses of heavier rain will wax and wane. These will arrive from the southwest, heading up to The Wash tonight. The television cameras in London are showing the rain with election presenters holding umbrellas while interviewing. 

Temperatures will widely be in the high teens to low 20s Celsius but lower in any persistent rain areas.  There is warmer air over France and as the frontal rain waves northwards there will be a mild southwesterly wind. If any breaks appear in the cloud in the southeast today, it will soon feel pleasantly warm in sheltered spots. Further north, it is still fresh. It will feel cool in exposed areas of western Scotland and Northern Ireland with a fresh westerly wind early on but this will ease down today.

Showers will feed in from the Atlantic for Northern Ireland and Scotland with heavier downpours later for the Western Isles and Northern Ireland. Many areas miss these and stay bright and breezy. There will be a drier region with sunny spells over northern England, the Midlands and much of Wales on Friday. It will be a fair day here but with increasing high cloud later on. The West Country will see heavier rain arriving by teatime which will head towards Eastern England. There will be some tricky conditions on the roads for the Friday evening commute with heavy rain, poor visibility and plenty of surface water spray. It will be worth having a look at the Netweather Radar before setting off later today to see where the heaviest rain has progressed too. 

A small low centre will direct the heavier rain over Anglia and then away over the North Sea tonight. A band of rain will set in for northern mainland Scotland and will bring the risk of localised flooding as the rain continues. The dominating feature into the weekend will be a low centre over southern Scandinavia and this will direct a cool, unstable flow towards the UK from the west/NW. 

Heavy showers will arrive on that flow over Wales tonight and pile up for Merseyside,  Manchester and the West Midlands early on Saturday morning. The warmer air in the south will have cleared away but in any sheltered July sunshine, it will still feel warm, with high UV. It’s just the airflow is cool and fresh. Overall Saturday will see bright or sunny spells with a rash of showers and a noticeable breeze for England and Wales. The showers ease for Wales and much of England during Saturday evening but heavier ones continue for eastern Scotland and northern England. 

It becomes clear, cool and calm over Britain for Saturday night. A few showers persist for Northern Ireland 

Sunday

Again there will be a rash of showers with bright or sunny spells. As the winds will be lighter these showers will be slow moving and so there will be heavier downpours when they arrive and the risk of thunder. Temperatures will widely be in the mid to high teens.

Next week there could be warmer, more humid air drawn up from the south. There are media shrieks about temperatures reaching 26 to 28C "a heatwave" but the warmer air would be wrapped around a low pressure from the Bay of Biscay. This would bring heavy rain, blusteyr winds with thundery outbreaks and caught up in that, some warmer air. It’s not a glorious summer picture.