20 April 2012 - The weather is expected to be rather showery for the world's biggest road race this weekend.
Our forecasters are predicting a showery picture for this Sunday, especially by the afternoon when there is an increasing risk of some heavy showers. A largely dry, fairly chilly start to the Marathon is expected but even at this stage a shower cannot be ruled out.
Some dry and bright weather is likely between the showers but spectators should bring an umbrella. It will feel on the fresh side too with temperatures only reaching the low teens by lunch time, although this may be better for the 36,000 runners taking part.
Elsewhere around the UK, the sunshine and showers theme will continue, with showers turning heavier in the afternoon and possibly thundery.
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Last updated: 20 April 2012