Weather Updates

USVI Heat Advisory Runs From 10 a.m. to 4 p.m.; St. Croix High Forecast Near 96°F

A heat advisory will take effect across St. Croix, St. Thomas and St. John at 10 a.m. Sunday, Oct. 4, as the National Weather Service warns of conditions that could cause heat-related illness, particularly among people without adequate cooling or hydration. The advisory runs through 4 p.m. AST. Issued by the weather service’s San Juan office at 2:25 a.m., the advisory also covers adjacent islands and Puerto Rico. Forecasters identified coastal areas, lowlands, interior valleys and urban areas as locations where the health risks are greatest, and warned that high temperatures or elevated heat indices can worsen symptoms in people with chronic conditions. Sunday’s forecast calls for highs around 96°F on St. Croix and 94°F on St. Thomas and St. John. Those figures represent forecast air temperatures. The advisory does not provide a numerical heat-index forecast, which describes how hot conditions feel when humidity is factored into the air temperature. Scattered showers and isolated af...