The three main party leaders are facing grey and wet weather as they cast votes in their constituencies.

Drizzle and light rain were forecast throughout the day, although brighter spells were expected this afternoon in the Prime Minister's constituency Kirkcaldy and Cowdenbeath.

As tradition dictates, the leaders of the three main political parties are all expected to be pictured casting their votes, and all of them would be well advised to take a brolly.

Voters too should head to the polling booths armed with an umbrella as showers are predicted for large parts of the UK.

Gemma Plumb, forecaster for MeteoGroup, the weather division of the Press Association, said: "The east of England will have a mainly dry day with some sunshine. The rest of England and Wales will be fairly cloudy with a risk of showers.

"In Scotland it will be cloudy again with the risk of some showers."

Temperatures in the South East will reach a maximum of 15C, central England and Wales will hover between 13-14C and the North will have highs of 10-13C.

In Kirkcaldy and Cowdenbeath, where Gordon Brown will cast his vote, light rain came in off the sea but brighter spells were expected.

Damp weather was also expected in David Cameron's Witney constituency, where rain had drifted in from the Midlands. Spells of drizzle were predicted throughout the day.

Liberal Democrat leader Nick Clegg faced similar conditions when casting his vote in Sheffield Hallam.