Showers or thundershowers will occur at several places in the Uva Province and in the Batticaloa, Ampara and Hambantota districts after 2.00 pm, the Met Department said.
Showers will occur at times in the Western and Sabaragamuwa provinces and in the Galle and Matara districts.
The Meteorological Department warns the public to take necessary measures to reduce the risk of temporary strong winds and thunderstorms.