Cayman Weather: Sunny Monday but afternoon showers expected Loop News Created : 14 May 2018 Cayman News According to the Cayman Islands National Weather Service, for Monday expect plenty of sunshine with isolated showers expected in the afternoon. Isolated showers are expected to continue over the next 24 hours along with light southeasterly winds and slight seas in association with an upper level trough over the western Caribbean. Radar images show isolated showers in and around the Cayman area moving northwest. Temperatures will rise to the upper 80’s °F. Winds will be east to southeast at 5 to 10 knots. Seas will be slight to moderate with wave heights of 2 to 4 feet.