Two lanes are closed northbound between junction 20 for Clevedon and junction 19 for Portishead so expect delays there.
More top news
Dry and feeling warmer this afternoon.
Giant sculptures of Shaun the Sheep have arrived in Bristol and you've been out an about searching for them!
Police have found 70 stolen bikes in a crackdown on theft. 28 of those owners have not been found. Do you recognise your stolen bike here?