The Met Office forecasts a shift to unsettled weather across the UK, including Northern Ireland, by the end of the week. Early warmth persists with temperatures above average in many spots. Western Northern Ireland may reach highs near 19C on Tuesday.

Tuesday features cooler air for most areas, cloud cover, patchy drizzle, and sunny spells. High pressure returns midweek for dry conditions and sunshine on Wednesday and Thursday. Winds strengthen in southern regions.

Rain and showers move in from the south and west late Thursday into Friday. Some downpours carry thunder potential. Sunshine before these systems boosts humidity and warmth.

Bank holiday weekend brings changeable weather with showers and sunny breaks. Northern areas face wetter spells through Sunday and Monday.

Met Office deputy chief forecaster Tom Crabtree noted rain and showers spreading from the southwest by Friday, with heavy and thundery outbreaks possible. He added the weekend pattern stays variable, especially in the north.