Brits hoping to enjoy the August bank holiday need to be ready to change their plans at the very last moment, say forecasters.
The three-day weekend will give millions their last chance of the summer to soak up a bit of sun and enjoy the great outdoors, with warm weather conditions predicted in many parts of the UK.
But balmy weather and clear skies are not guaranteed despite temperatures hovering around the mid-20s, according to the Met Office, with plenty of rain clouds also present throughout.
Deputy Chief Meteorologist, Helen Caughey said: “There will certainly be more sunshine around for many over the weekend however it is unlikely to be entirely dry.
"There is a risk of heavier showers initially in the far south or southeast to start the weekend, with cloudier and wetter weather at times in the northwest through Saturday and Sunday.
"Monday will likely be a widespread day of sunshine and showers, which could break out just about anywhere, but should be relatively short lived, and some areas likely escaping them altogether.”
Met Office forecaster Alex Deakin also warned that "there’s more uncertainty than usual in the weather", and advised that anyone with plans stay up to date with the weather on a day-by-day basis.
Humidity levels are expected to be high in the south of England over the next few days, while northern areas will remain cooler and fresher.
UK weather forecast:
Rather unsettled, but warm and humid for many.
Today:
Starting off cloudy for many. Outbreaks of rain and drizzle affecting some northern and western parts, perhaps locally heavy across Scotland this afternoon. Some sunny spells developing inland. Feeling warm and muggy, perhaps very warm in the southeast.
Tonight:
Many southern and eastern areas dry, warm and humid. Some patchy rain in places, becoming persistent and heavy in parts of the west later.
Wednesday:
A band of rain in the west, heavy at times, edging slowly eastwards. Cooler and fresher but brighter in the northwest. Hot and humid in the southeast with sunny spells.
Outlook for Thursday to Saturday:
Perhaps some heavy rain across the south at first on Thursday, but for many becoming drier as we head into the weekend. Still rather warm in the south, fresher elsewhere.
