Occasional showers are forecast across Saint Vincent and the Grenadines tonight, with the chance of showers increasing tomorrow morning as a weak trough move across the island chain. Model guidance is indicating the possibility of isolated thunderstorms. After which, mostly fair conditions are forecast into Saturday before a tropical wave begins to affect SVG sometime around Saturday afternoon. Moderate showers and isolated thunderstorms are possible mainly across the Grenadine Islands. Sunday is forecast to be mostly fair.