Met Office issues rain warning for same day as 21C temperatures

The Met Office has issued two yellow weather warnings for rain on the same day that large parts of the country will see unseasonably warm temperatures.

Mild temperatures are forecast on Wednesday, with highs of 20C or 21C in the south – about 5C warmer than the average for this time of year – while 13-18C is forecast for most, according to the Met Office.

However, heavy rain across parts of Wales and west England prompted the forecaster to extend its warning, starting at 6pm this evening, for parts of south-west England, the north and east Midlands, north-west England and Wales until 9pm, where some areas could see 50 to 80mm of rain in six hours.

Another yellow warning has been issued from midday Wednesday to midnight and includes north-east and north-west England and Yorkshire and Humber. Many areas will see 20mm of rain but some could have 50 to 80mm in six hours, and isolated thunderstorms are possible, the Met Office said.

The yellow warning means there is a small chance of interruption to power supplies and flooding.

Met Office meteorologist Greg Dewhurst warned on Wednesday morning that spells of heavy rain could lead to travel disruption and flooding in places.

He said: “The rain is quite extensive across parts of Scotland, Northern Ireland, Wales and the west of England, and when it’s not raining it’s cloudy, misty and murky. It will stay pretty similar in terms of the areas that will see the outbreaks of rain, it could be heavy at times.“

Looking ahead to the rest of the week, the forecaster added that on Friday there will be a west and east split developing with cloud and rain in western parts of the UK while central and eastern areas will be dry with sunny spells. Temperatures will be between 13-16C.

• Read more: Thousands of homes to be built on high-risk flood plains (Yahoo News UK)

Yahoo breaks down what the weather will be like for each region of the UK, according to the Met Office.

London and the South East

• Wednesday

Generally rather cloudy and breezy with some further occasional showery rain likely, locally heavy. However, drier, brighter intervals are possible in the east and feeling warm where these occur. Maximum temperature 21C.

• Thursday to Saturday

Thursday, mostly dry and bright, a few showers. Friday, probably dry, although a small chance of a spell of rain, especially in east. Saturday, cloud and rain clearing east later.

East of England

• Wednesday

Sunny spells after a cloudy start. Mostly dry but outbreaks of rain by the evening. Feeling warm. Maximum temperature 20C.

• Thursday to Saturday

Thursday, mostly dry and bright. Feeling warm. Friday, largely dry. Saturday, some heavy rain and wind.

South West

• Wednesday

Heavy showers continue to plague the southwest, with light winds leading to rather prolonged downpours at times. Some dry periods developing in the afternoon, and feeling rather warm. Maximum temperature 19C.

• Thursday to Saturday

Settled on Thursday with light winds and sunny spells, before turning cloudy and windy on Friday, with a band of rain arriving from the west. Further heavy showers on Saturday.

Midlands

• Wednesday

Showers persist through the day, moving slowly north-eastwards as winds turn light through the morning. Some heavy downpours at times, though some dry interludes as well. Feeling warm in any sunshine. Maximum temperature 19C.

• Thursday to Saturday

An interlude of settled conditions on Thursday with light winds and plenty of sunshine, before becoming overcast and rather windy on Friday. Heavy rain returns from the southwest by Saturday.

North East

• Wednesday

It will continue generally cloudy and breezy with occasional outbreaks of rain, heavy at times. Hill fog persisting. Mild. Maximum temperature 17C.

• Thursday to Saturday

Turning drier and brighter on Thursday, and probably much of Friday before cloud, rain and stronger winds move east overnight and into Saturday. Brighter, drier conditions likely to return later.

North West

• Wednesday

Unsettled with heavy showers spreading slowly and rather erratically north-eastwards, with light winds bringing a risk of local flooding. Some drier, brighter interludes, and feeling warm in any sunshine. Maximum temperature 18C.

• Thursday to Saturday

Dry and settled on Thursday with plenty of sunshine. Becoming cloudier and windier through Friday, with strengthening south-westerly winds pushing patchy rain across the area. Further heavy showers on Saturday.

Scotland

• Wednesday

Cloudy and breezy with outbreaks of rain, becoming heavy and perhaps thundery at times. A very mild and rather humid day. Maximum temperature 15C.

• Thursday to Saturday

Outbreaks of heavy rain will clear overnight then dry on Thursday with sunny spells. Mainly dry, bright and breezy on Friday but rain later. Outbreaks of rain on Saturday.

Northern Ireland

• Wednesday

Cloudy with outbreaks of rain, these heavy and thundery at times. Winds easing and feeling very mild for mid October. Maximum temperature 17C.

• Thursday to Saturday

Sunny spells and showers on Thursday. Changeable and unsettled for Friday and weekend with bands of rain moving east and strong winds at times.

Wales

• Wednesday

Breezy at first, but winds soon turn light, causing showers to become slow-moving and rather persistent across the country. These showers heavy at times, leading to a rather wet day. Maximum temperature 18C.

• Thursday to Saturday

More settled on Thursday with sunny spells and patchy rain in the southwest. Cloudier and windier from Friday, with rain arriving from the west, bringing further heavy showers on Saturday.