Hot and humid air is expected to be pushed into much of Britain by a “Spanish Plume”.

And Huddersfield could seek weekend temperatures hit the 25° Celsius mark, or 77°F, but with heavy rain also likely.

Weather forecasters are predicting hot temperatures over much of the country.

But heavy rain is likely to become widespread through the weekend, especially in the west and north, and severe thunderstorms may affect some areas.

In Huddersfield, forecaster Paul Stevens is expecting to see the heaviest rain late on Saturday and through into Sunday, perhaps with thunderstorms. But it is unlikely to be as wet as it was earlier this month, when half a month’s rain fell in just 12 hours on August 13 and 14.

Mr Stevens, of Salendine Nook, said: “The Spanish plume may just pass to the west of us but we are likely to be in the hazy area alongside it.

“The warm front we have today will continue into Saturday and temperatures then could reach the mid 20s.

“It will be hot but hazy and later on Saturday it is likely to spark some heavy downpours, perhaps with thunder.

“That rainfall will continue into Sunday and the day is likely to be pretty wet but the really heavy stuff is likely to be away to the west of us.

“The week ahead looks set to be warm but wet: at least it will be warm rain.

“We had talked of August being a warm month and that seems to be the pattern, and we could see another Spanish plume heading our way by the end of next week, bringing more warm air but also creating very humid conditions”.

A Spanish Plume is a colloquial description of a weather situation in which a large southwards dip in the high altitude jet stream develops to the west of Europe encouraging a deep southerly wind flow.

This pushes hot and humid air from Iberia north and north-east into northern Europe, including the British Isles. The proximity of active weather systems moving along with the jet stream along with heating from the summer sunshine can encourage thunderstorms to develop. The strong winds from the jet stream help to organise the thunderstorms and can aid in their severity.