Temperatures in Hong Kong are expected to drop to as low as 18 degrees Celsius (64.4 Fahrenheit) on Tuesday as a cold front hits the city early next week. According to the Hong Kong Observatory, a strong monsoon over the weekend will bring cooler weather. “A strong northeast monsoon will affect the coast of Guangdong over the weekend. A cold front is expected to move across the coast of southern China at first on Monday,” the forecaster said on Friday. “Under the influence of the associated...