The atmosphere is forecast to remain relatively dry for the rest of the weekend with few scattered showers from time to time. Weak instability Sunday night into Monday morning is likely to trigger a few showers and a slight chance of isolated thunderstorms. Fair to occasionally cloudy skies are likely during the day before instability builds from the south during the night increasing the chance of isolated thunderstorms over the Grenadines. By Tuesday, showers and isolated thunderstorms are forecast across the island.