Dominic Kavanagh is a Clinical Care Patient Advisor for the Midlands at the Cystic Fibrosis Trust.
Many people from the region are running the London marathon to raise money for the charity, but he says he's confident in the country's security services.
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Any mist or fog will clear quickly during the morning leaving the rest of the day dry with plenty of hazy sunshine.
Saturday will be fine and dry with sunny spells but with a noticeable easterly breeze.
Former Aston Villa, Coventry City and Leicester City star Dion Dublin tells ITV News Central how he thinks his former teams are doing.