Britain and France are expected to argue that current sanctions are not working and call for the embargo to be altered at a meeting with European Union foreign ministers in Brussels.
Mr Hague's calls look set to be rejected with several EU countries - including the Netherlands, Sweden and the Czech Republic - opposed to the plans over fears the weapons could fall into the hands of Islamic extremist groups.
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The government is encouraging motorists to think twice about buying diesel cars in a bid to improve air quality.
Atlantic frontal systems spread rain in from the northwest on both weekend days. Windy - with gales across the north and west but mild.
The band announced at a free concert on Friday that they would take over the event's Pyramid stage on Saturday June 25.