The Derbyshire festival which was cancelled last year due to ‘adverse weather conditions’, this year has performances from bands including Catfish and the Bottlemen and The Wombats.
The four day event at Pikehall, near Matlock. will finish tomorrow, Sunday, July 29.
Police seize stash of drugs from people entering Y Not FestivalA spokesman from the festival said: "Please be aware we're sat for rain and high winds for Saturday and Sunday.
"Ensure you have fastened your tents and structures securely with pegs, and have appropriate clothing and footwear. We are in contact with the Met Office and will keep you updated on the latest forecast."