Mumbai weather update: The India Meteorological Department (IMD) issued a yellow alert for Mumbai, Thane, Palghar and Raigad, warning of hot, humid conditions. The India Meteorological Department IMD has issued a yellow alert for Mumbai Thane Palghar and Raigad warning of hot and humid conditions in isolated areas on SundayMumbai is expected to experience mainly clear skies with hot and humid conditions likely to persist in parts of the city and its.