Tonight: Initially fair and hazy to partly cloudy with a medium chance for a heavy shower or thunderstorm favouring south and southeast Trinidad. During the evening and night encroaching cloudiness from the east and southeast is expected to produce a few showers and a medium to high chance for thunderstorm activity over eastern and southeastern coastal and near offshore areas of Trinidad, increasing inland from near midnight. Tomorrow: From overnight until mid to late afternoon, cloudy periods with light to moderate showers or rain and a medium to high chance for heavy showers and thunderstorm activity.