[1] Weatherall is the son of Sally (née Philbrook) and Mark Weatheralll, a consultant neurologist, and is the second youngest of their five children.
He attended Dr Challoner's Grammar School in Amersham, and began a law degree at Exeter University in 2023.
In 2023, he played for the England under-19 team in two youth Test matches and a One Day International against Australia.
[2][4] After his debut in the County Championship, he took his maiden first-class wicket on 13 April 2024, dismissing Middlesex and former England opener Mark Stoneman.
[6] In his first List A game on 24 July 2024, Northamptonshire faced the same opposition in the One-Day Cup.