Outbreaks of rain with possibly heavy thunder alongside cloud will affect parts of south-east England, in particular Kent, Sussex and parts of East Anglia, during the morning.
Elsewhere, there will be a mixture of sunshine and showers. The showers are likely to be heavy at times, with the risk of hail and thunder, and these will move eastwards during the afternoon.
The heaviest of the showers will become confined across southern Scotland and Northeast England later in the day. It will be less warm than previous days in the south, but it will feel pleasantly warm in the sunshine, with temperatures reaching highs of 23 Celsius (73F).
Hillary Clinton has accused China of stealing commercial secrets and "huge amounts" of government information.
She also claimed the country tried to "hack into everything that doesn't move in America."
Speaking at a campaign event in New Hampshire, America's Democratic presidential candidate said she wanted to see China's peaceful rise.
"But we also have to be fully vigilant," she said. "China's military is growing very quickly, they're establishing military installations that again threaten countries we have treaties with, like the Philippines because they are building on contested property."
US officials say China is the top suspect in the massive hacking of a US government agency that compromised the personnel records of at least 4.2 million current and former workers.
China denies hacking into the computers of the US Office of Personnel Management.
Greece in a crunch referendum on the country's debt deal, with the impact rippling through the rest of Europe whatever the result.
Voters in Greece are set to go to the polls later in a crunch referendum on the country's debt deal, with the impact effecting the rest of Europe whatever the result. Its government has left it for the people to decide whether to accept an austerity package put forward by international lenders in return for a further bailout from the eurozone rescue fund.
Banks have been closed all week to prevent a run driven by savers withdrawing cash amid uncertainty about whether the country will crash out of the euro, after falling into arrears with the International Monetary Fund (IMF).