A record number of runners have been taking part in Reading's annual Half Marathon despite the awful weather. More than 16,000 competitors took to the streets including 80 professional athletes. Sir John Madejski sounded the hooter to start the event.
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There is a high risk from birch pollen during any good weather. Oak pollen is also on the increase.
Wednesday's weather for the west of the region
Wednesday's weather for the east of the region