Showers or thundershowers will occur at times in the North Central, Eastern and Uva provinces and in the Matale and Hambantota districts today (25), the Meteorological Department said.
Showers or thundershowers will occur at several places in the Western and Sabaragamuwa provinces and in the Kandy, Nuwara Eliya, Galle and Matara districts during the evening or night.
Extreme levels of rainfall over 50 mm were also forecast in some areas.
The department also urged the public to take necessary measures to minimize the dangers posed by temporary strong winds and thunderstorms.