Short-range forecast models from NOAA and international agencies indicate scattered precipitation chances on August 9 driven primarily by monsoon moisture across parts of Asia and South America alongside mid-latitude frontal systems. For Seoul, the East Asian summer monsoon typically sustains elevated rain probabilities in early August, while São Paulo sees lower baseline odds during the Southern Hemisphere dry season unless a passing cold front organizes showers. Traders monitor convective-scale guidance and ensemble precipitation probabilities, which update multiple times daily and can shift sharply with steering flow or instability changes. Resolution depends on official gauge measurements exceeding trace amounts at designated stations.