Here's the 24-hour weather outlook for today, Sept. 22, from PAGASA:
Cloudy skies with rains are expected in Calabarzon, Bicol Region, Oriental and Occidental Mindoro, Marinduque, Romblon, Northern Palawan due to the southwest monsoon or Habagat, enhanced by the the low pressure area east of Central Luzon.
The rest of Luzon will have fair weather condition in the morning with possible localized thunderstorms.
What are Thunderstorms and Why Do They Happen in the Afternoons?
Habagat, Explained: Why They're Dangerous Like Typhoons
Visayas and Mindanao
Eastern portions of Visayas including Dinagat Islands will have rains as early as morning due to localized thunderstorms.
The rest of Visayas and Mindanao will have fair weather conditions with possible rains by noon.